Rajasthan Board Class 10 Question Paper 2024 Science

RAJASTHAN BOARD

QUESTION
PAPER
2024

DOWNLOAD PDF


RBSE

®ÖÖ´ÖÖÓÛú Roll No.

No. of Questions – 22 S-07- Science
No. of Printed Pages – 15

 , 2024
SECONDARY EXAMINATION, 2024

SCIENCE
  3  15 
  80

     
GENERAL INSTRUCTIONS TO THE EXAMINEES :

(1)    -     
Candidate must write first his/her Roll No. on the question paper compulsorily.

(2)       
All the questions are compulsory.

(3)       -    
Write the answer to each question in the given answer-book only.

S-07-Science [ Turn over

2

(4)      ,         
For questions having more than one part, the answers to those parts are to be written
together in continuity.

(5) -          //      
    ü
If there is any error / difference / contradiction in Hindi & English versions of the
question paper, the question of Hindi version should be treated valid.

(6)   16  22     
There are internal choices in Q. No. 16 to 22.

 – 
SECTION – A
1.   
         -   
Multiple Choice Questions :
Write the correct option of answer of the following questions in the answer-book :
(i) Fe + H2O  Fe3O4 + H2
      Fe    –
() 1 () 2
() 3 () 4
Fe + H2O  Fe3O4 + H2
Coefficient of Fe in balanced equation of the above reaction will be
(A) 1 (B) 2
(C) 3 (D) 4 1
S-07-Science

3

(ii)      –
()   ()  
()   ()  
An acid present in curd is
(A) Oxalic acid (B) Tartaric acid
(C) Methanoic acid (D) Lactic acid 1

(iii)       –

()  () 
()  () 
The best conductor of heat is
(A) Copper (B) Lead
(C) Mercury (D) Zinc 1

(iv)       –
() –OH () – C –
||
O
H

() – C () – C – OH
 ||
O
O

Functional group present in ketone is
(A) –OH (B) – C –
||
O
H

(C) – C (D) – C – OH 1
 ||
O
O

S-07-Science [ Turn over

4

(v)        ,    –
()   ()  
()   ()  
The heart in human beings is part of the system for
(A) Nutrition (B) Excretion
(C) Respiration (D) Circulation 1

(vi)               ?
()  () 
()   () 
Who does the work of opening and closing of pore in leaf ?
(A) Chloroplast (B) Xylem
(C) Guard cell (D) Phloem 1

(vii)            ?

()   ()  
()   () 
Which endocrine gland stimulates growth in all organs ?
(A) Pituitary gland (B) Thyroid gland
(C) Adrenal gland (D) Pancreas 1

(viii)          ,     –

()  () 
()  () 
Flower called, when the flower contains both stamen and pistil
(A) Unisexual (B) Self-pollination
(C) Bisexual (D) Cross pollination 1

S-07-Science

5

(ix)       –
() XX () XY

() XXX () YY

Men have sex chromosomes

(A) XX (B) XY

(C) XXX (D) YY 1

(x)      3                –
() 1.5 () 6

() 3 () 9

A man is standing 3 metre away from a plane mirror. The distance between the man
and its image in metre will be

(A) 1.5 (B) 6

(C) 3 (D) 9 1

(xi)       sin i = a  sin r = b ,   ()  –
b
()  = ab ()  = a

a
()  = b ()  = ab

In the phenomenon of refraction of light, if sin i = a and sin r = b, then refractive
index () will be

b
(A)  = ab (B)  = a

a
(C)  = b (D)  = ab 1

S-07-Science [ Turn over

6

(xii)         –

()  ()  

()  () 

Advance sunrise and delayed sunset are due to

(A) scattering (B) atmospheric refraction

(C) dispersion (D) reflection 1

(xiii)         

() e () i

() x () r

The angle of deviation for the given triangular prism is

(A) e (B) i

(C) x (D) r 1

S-07-Science

7

(xiv)      ()     

()      ()     
()     ()    
Earth wire is used in the electric instruments as
(A) electricity saver (B) safety measure
(C) fuse (D) regulator 1

(xv)     “   ”     –

()     ()      
()     ()    
For a current carrying conductor, in the “right hand thumb rule”, the thumb points
towards the
(A) direction of magnetic field.
(B) direction of earth’s magnetic field.
(C) direction of electric current.
(D) None of these 1

2.      
Fill in the blank places :
(i)             _________  
Name of the nitrogen containing gas obtained by thermal decomposition of lead
nitrate is _________. 1

(ii) HCl         _________  

Chemical formula of anion obtained by dissociation of HCl is _________. 1

(iii) C3H8        _________  

Number of covalent bonds present in C3H8 molecule is _________. 1

S-07-Science [ Turn over

8
(iv)          _________     
 
An artificial kidney is a device to remove nitrogenous waste products from the
blood through _________. 1

(v)         _________   
The gap between two neurons is called a _________. 1

(vi)    (h')     (h)      _________ 
 
The ratio of the height of the image (h') and the height of the object (h) is called
_________ of the spherical mirror. 1

(vii) -    _________     

_________ lens is useful in correcting far-sightedness. 1

3.     (          )
Very Short Answer Questions : (Answer the questions in one word or in one line.)

(i)            
Write name of the second metal mixed with copper in brass. 1

(ii) ,             
Select and write name of the liquid non-metal among sulphur, bromine and iodine. 1

(iii) CH3 – C CH    

Write the name of CH3 – C CH. 1

(iv)             ?
In which plant part resin and gum are stored ? 1

S-07-Science

9
(v)      ,         ?
Which part of the brain controls blood pressure, salivation and vomiting ? 1

(vi)         
Write name of two bacteria borne infectious diseases. 1

(vii)          F2        

/ ________  
In the experiment of Mendel’s law of inheritance of traits, the proportion/percentage
of dwarf plants found in plants obtained in F2 progeny was ________. 1

(viii)       (u),   (v)    (f)    

Write the relation between object distance (u), image distance (v) and focal length
(f) for a spherical lens. 1

(ix)             ?
Which part of the eye controls the size of the pupil ? 1

(x)        
Write one example of consumer in ecosystem. 1

 – 
SECTION – B
  :
Short Answer Questions :
4. Na2CO3(s) + 2HCl(aq)  [X] + H2O(l) + CO2(g)

    [X]       
Na2CO3(s) + 2HCl(aq)  [X] + H2O(l) + CO2(g)

Write chemical name and formula of compound [X] in above reaction. 2

S-07-Science [ Turn over

10

5. “      ”
             
“Metals are good conductors of electricity.”

Draw the systematic equipment used for laboratory testing of above statement. 2

6.                 ?   
Why the cloth becomes clean on applying soap on the dirty clothes in presence of water ?
Write the reason. 2

7.          
Draw electron dot structure of ethene molecule. 2

8.       
Explain two methods of contraception. 1+1=2

9.   (TT)    (tt)   F2          
 
Draw a line diagram showing inheritance of traits upto F2 progeny between pure tall (TT)
and pure short (tt) plants. 2

10.  10    3A  2              
 
3A current is passed through a 10  resistor for 2 seconds. Find out the value of heat
produced in the coil. 2

S-07-Science

11

11.      A  B       

Find out equivalent resistance between the points A and B in the following circuit
diagram : 2

12.                  
 
Draw diagram to show lines of magnetic field inside and around a current carrying
solenoid. 2

13.            
Draw magnetic field lines of a bar magnet. 2

14.             
Explain two ways to managing the garbage problem. 1+1=2

15.           
Describe in brief different trophic levels of a food chain. 2

S-07-Science [ Turn over

12

 – 
SECTION – C

   
Long Answer Questions :

16. (i)        
(ii)            ?    
 
(i) Write chemical formula of Plaster of Paris.

(ii) Why Plaster of Paris becomes hard on mixing water ? Explain by giving suitable
chemical equation. 1+2=3

/OR
(i)       
(ii)         ?      
(i) Write chemical name of baking soda.

(ii) Why cake becomes soft and spongy ? Explain by giving suitable chemical equation.

1+2=3

17.            ?     
Which part of the brain controls involuntary actions ? Explain with an example. 1+2=3

/OR
          
Write name and two functions of the hormone secreted by testes. 1+2=3

S-07-Science

13

18          
Draw a labelled diagram of human male reproductive system. 3

/OR
         
Draw a labelled diagram of human female reproductive system. 3

19. (i)        SI    
(ii)                     
   ?
(iii)      (V)    (I)    ()  

(i) Define electric potential difference. Write its SI unit.
(ii) Which device is used for measurement of electric potential difference and in which
order is it connected in the circuit ?
(iii) Draw a graph between potential difference (V) and electric current (I) according to
Ohm’s law. 1+1+1=3

/OR
(i)        SI    
(ii)                      
  ?
(iii)              

(i) Define electric resistance. Write its SI unit.
(ii) Which device is used for measurement of electric current and in which order is it
connected in the circuit ?
(iii) Draw a labelled electric circuit diagram to practical study of Ohm’s law. 1+1+1=3

S-07-Science [ Turn over

14

 – 
SECTION – D
  :
Essay Type Questions :

20. (i)          
(ii)  (II)  +    + 
 -       
(iii)                

(i) Write name of the gas obtained on burning of coal.

(ii) Copper (II) oxide + Hydrogen  Copper + Water

Write balanced chemical equation for above word-equation.

(iii) Draw the systematic equipment for exhibition of oxidation of copper into copper
oxide. 1+1+2=4

/OR
(i)     
(ii)  +      + 
 -       
(iii)      ,           
   
(i) Define reduction.

(ii) Iron + Copper sulphate  Iron sulphate + Copper

Write balanced chemical equation for above word-equation.

(iii) Draw the systematic equipment for exhibition of reaction of iron nails dipped in
solution of copper sulphate. 1+1+2=4
S-07-Science

15

21. (i) -        
(ii)          
(i) Explain the events occurring during the photosynthesis process.
(ii) Draw a labelled diagram of cross-section of a leaf. 2+2=4
/OR
(i)            
(ii)         
(i) Explain the process of opening and closing of stomata in leaves.
(ii) Draw a labelled diagram of open and closed stomatal pore. 2+2=4

22. (i)      ?
(ii)        
(iii)      + 4.0 D ,       

(i) What is a spherical mirror ?
(ii) Define the pole of a spherical mirror.
(iii) If the power of a lens is + 4.0 D, then find its focal length. 1+1+2=4
/OR
(i)       ?
(ii)        
(iii)       14 cm ,       

(i) What is magnification of a lens ?
(ii) Define the principal axis of the lens.
(iii) If the radius of curvature of a spherical mirror is 14 cm, then find its focal length.
1+1+2=4
____________

S-07-Science [ Turn over

16

S-07-Science

QUESTION PAPERS
GET PREVIOUS YEAR QUESTION PAPERS FOR ALL CLASSES FOR CBSE, ISCSE, ISC AND ALL ALL
STATE BOARDS HERE AT

Andhra Pradesh Board Question Papers
BOARD
WISE Assam Board Question Papers
Bihar Board Question Papers
Chhattisgarh Board Question Papers
Goa Board Question Papers
Gujarat Board Question Papers
Haryana Board Question Papers
Himachal Pradesh Board Question Papers
J&K State Board Question Papers
Jharkhand Board Question Papers
Karnataka Board Question Papers
Kerala Board Question Papers
Madhya Pradesh Board Question Papers
Maharashtra State Board Question Papers
Manipur Board Question Papers
Meghalaya Board Question Papers
Mizoram Board Question Papers
Nagaland Board Question Papers
Orissa Board Question Papers
Punjab Board Question Papers
Rajasthan Board Question Papers
Tamil Nadu Board Question Papers
Telangana State Board Question Papers
Tripura Board Question Papers
Uttarakhand Board Question Papers
Uttar Pradesh (UP) Board Question Papers
West Bengal (WB) Board Question Papers