09-27-2024, 02:06 PM
CBSE 10th std Board Exam 2025 for Science Model Question Paper with answer key can be had from the links attached:
Some Sample questions from the question paper are:
1. 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 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.
2. Comment on the following statements:
(i) Bee sting is treated with baking soda paste whereas wasp sting is treated with dilute vinegar.
(ii) Farmers treat soil with quicklime when tilling.
(iii) Ancient sculptures and marble structures are conserved by treating them with certain chemicals."
3. Water is used by the leaves of the plants for photosynthesis but rather than watering the leaves, we water the plant through the soil. How does this water reach the leaves of the plant?
4. During which of the following stages of the circulation of blood in a normal 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
4. Which of the following is an endothermic reaction?
A. Burning of candle.
B. Cooking of food.
C. Decomposition of Vegetable matter.
D. Reaction of Sodium with air
Download the complete CBSE 10th Science Sample paper and answer key from the links given below.
CBSE Class 10 Official Model Question paper 2025- Science.pdf (Size: 896.16 KB / Downloads: 1,483)
CBSE Class 10 Answer Key 2025- Science.pdf (Size: 611.53 KB / Downloads: 967)
Some Sample questions from the question paper are:
1. 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 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.
2. Comment on the following statements:
(i) Bee sting is treated with baking soda paste whereas wasp sting is treated with dilute vinegar.
(ii) Farmers treat soil with quicklime when tilling.
(iii) Ancient sculptures and marble structures are conserved by treating them with certain chemicals."
3. Water is used by the leaves of the plants for photosynthesis but rather than watering the leaves, we water the plant through the soil. How does this water reach the leaves of the plant?
4. During which of the following stages of the circulation of blood in a normal 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
4. Which of the following is an endothermic reaction?
A. Burning of candle.
B. Cooking of food.
C. Decomposition of Vegetable matter.
D. Reaction of Sodium with air
Download the complete CBSE 10th Science Sample paper and answer key from the links given below.
CBSE Class 10 Official Model Question paper 2025- Science.pdf (Size: 896.16 KB / Downloads: 1,483)
CBSE Class 10 Answer Key 2025- Science.pdf (Size: 611.53 KB / Downloads: 967)