Science sample question paper (2024-25) Premium free
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Course
Science
Institution
Fourth Year / 10th Grade
Sample question paper 2024-25 cbse class 10 official sample question paper release by CBSE include physics chemistry biology
For practice
Free
New syllabus
SCIENCE SQP (2024-25)
CLASS X
(Science 086)
Max. Marks: 80 Time Allowed: 3 hours
General Instructions:
1. All questions would be compulsory. However, an internal choice of approximately 33%
would be provided. 50% marks are to be allotted to competency-based questions.
2. Section A would have 16 simple/complex MCQs and 04 Assertion-Reasoning type
questions carrying 1 mark each.
3. Section B would have 6 Short Answer (SA) type questions carrying 02 marks each.
4. Section C would have 7 Short Answer (SA) type questions carrying 03 marks each.
5. Section D would have 3 Long Answer (LA) type questions carrying 05 marks each.
6. Section E would have 3 source based/case based/passage based/integrated units of
assessment (04 marks each) with sub-parts of the values of 1/2/3 marks.
Section-A
Question 1 to 16 are multiple choice questions. Only one of the choices is correct. Select and
write the correct choice as well as the answer to these questions.
1 Identify ‘p’, ‘q’ and ‘r’ in the following balanced reaction
1
Heat
p Pb (NO3)2(s) ------> q PbO(s) + r NO2(g) + O2(g)
A. 2,2,4
B. 2,4,2
C. 2,4,4
D. 4,2,2
2 Match column I with column II and select the correct option using the given
codes. 1
Column I Column II
a. A metal that forms amphoteric oxides (i) Ga
b. A metal which melts when kept on our palm (ii) Au
c. A metal that reacts with nitric acid (iii) Al
d. A metal which cannot displace hydrogen from
(iv) Mn
acids
A. a – (ii), b – (i), c – (iii), d – (iv)
B. a – (iii), b – (i), c – (iv), d – (ii)
C. a – (iv), b – (ii), c – (iii), d – (i)
D. a – (iii), b – (ii), c – (i), d – (iv)
,3
1
The solution in the given figure is likely to be
A. HNO3
B. C2H5OH
C. H2SO4
D. CO2 in water
--------------
For Visual Impaired Students
Which among the following is considered as the strongest electrolyte?
A. Dilute acid
B. Dilute sugar solution
C. Glucose solution
D. Ethanol in water
4 An aqueous solution ‘A’ turns the phenolphthalein solution pink. On addition of
an aqueous solution ‘B’ to ‘A’, the pink colour disappears. Which of the following 1
statement is true for the solutions ‘A’ and ‘B’.
A. A is strongly basic and B is a weak base.
B. A is strongly acidic and B is a weak acid.
C. A has a pH greater than 7 and B has a pH less than 7.
D. A has a pH less than 7 and B has a pH greater than 7.
5 When 50g of lead powder is added to 300 ml of blue copper sulphate
solution, after a few hours, the solution becomes colourless. This is an 1
example of
A. Combination reaction
B. Decomposition reaction
C. Displacement reaction
D. Double displacement reaction
6 The electronic configuration of three elements X, Y and Z are X- 2, 8, 7; Y- 2,
8, 2; and Z - 2, 8 1
A. Y and Z are metals
B. Y and X are non-metals
C. X is a non -metal and Y is a metal
D. Y is a non-metal and Z is a metal
7 Which of the following is an endothermic reaction?
A. Burning of candle. 1
B. Cooking of food.
C. Decomposition of Vegetable matter.
D. Reaction of Sodium with air
, 8 During cellular oxidation of Glucose, ATP is produced along with formation of 1
other products in this reaction. Which of the following events is associated with
production of maximum ATP molecules per molecule of Glucose during this
process? Synthesis of
A. ethanol in yeast
B. lactic acid in muscle cells
C. carbon dioxide in yeast cells
D. carbon dioxide in human cells
9 During which of the following stages of the circulation of blood in a normal 1
human being, the oxygenated blood is pumped to all parts of the body?
A. contraction of the left atrium
B. contraction of left ventricle
C. relaxation of the right atrium
D. relaxation of the right ventricle
10 Which of the following adaptations in herbivores helps in digestions of 1
cellulose?
A. Longer large intestine
B. Smaller large intestine
C. Smaller small intestine
D. Longer small intestine
11 There was a cerebellar dysfunction in a patient. Which of the following activities 1
will get disturbed in this patient as a result of this?
A. Salivation
B. Hunger control
C. Posture and balance
D. Regulation of blood pressure
12 In snails individuals can begin life as male and depending on environmental 1
conditions they can become female as they grow. This is because
A. male snails have dominant genetic makeup.
B. female snails have dominant genetic makeup.
C. expression of sex chromosomes can change in a snail’s life time.
D. sex is not genetically determined in snails.
13 In the following cases, a ray is incident on a concave mirror. In which case 1
is the angle of incidence equal to zero?
A. A ray parallel to the principal axis.
B. A ray passing through the centre of curvature and incident obliquely.
C. A ray passing through the principal focus and incident obliquely.
D. A ray incident obliquely to the principal axis, at the pole of the mirror.
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