1. Consider the following statements: The acceleration due to earth’s gravity decreases if 1. we go down from the surface of the earth towards its center 2. we go up from the surface of the earth 3. we go from the equator towards the pole 4. the rotational speed of the earth is increased Which of these statements are correct?

A. 1 and 2 B. 3 and 4 C. 1, 2 and 4 D. 2, 3 and 4

Answer: Option C
2. Consider the following statements: A 4—wheel vehicle moving in a sharp circular path at high speed will: 1. overturn about its outer wheels 2. overturn about its inner wheels 3. skid outwards 4. skid inwards

A. 1 and 3 B. 2 and 4 C. 2 and 3 D. 1 and 4

Answer: Option A
3. When a wave goes from one level to another there is a change in the (i) velocity (ii) amplitude (iii) frequency (iv) wavelength Choose the correct answer:

A. only (i) B. (i), (ii) C. (i), (ii) and (iv) D. all of them

Answer: Option C
4. The velocity of sound in air is affected by a change in the (i) atmospheric pressure (ii) a moisture content of the air (iii) temperature of air (iv) composition of air Choose the correct answer:

A. (i) and (ii) B. (i), (iii) and (iv) C. (i), (ii) and (iii) D. (ii), (iii) and (iv)

Answer: Option D
5. Consider the following statements: (i) A geostationary satellite is at an approximate height of 10,000 km (ii) FM transmission of music is a very good quality because the atmospheric or man-made noises which are generally frequency variations can do little harm. Which of the statements given above is/are correct?

A. only i B. only ii C. both i and ii D. Neither i nor ii

Answer: Option B

1. Which of the following is/are the example/examples of chemical change? 1. Crystallization of sodium chloride 2. Melting of ice 3. Sourcing of milk Select the correct answer using the code given below:

A. 1 and 2 only B. 3 only C. 1,2 and 3 D. None

Answer: Option B
2. Consider the following statements. The equivalent weight of the compound is the weight of it that combines with or displaces directly 1. 1.008 part by weight of hydrogen 2. 16 parts by weight of nitrogen 3. 35.45 part by weight of chlorine Which of the statements given above are correct?

A. 1, 2 and 3 B. 1 and 2 C. 2 and 3 D. 1 and 3

Answer: Option D
3. Consider the following elements 1. Copper 2. Gold 3. Platinum 4. Silver Which of the above elements exists free in nature?

A. 1 and 2 B. 2 and 3 C. 1, 2 and 4 D. 3 and 4

Answer: Option B
4. Consider the following pairs of ions or atoms 1. Na+ and Ne 2. Na+ and K+ 3. K+ and Cl– In which of these pairs are the ions/atoms isoelectronic with each other?

A. 1, 2 and 3 B. 1 and 2 C. 2 and 3 D. 1 and 3

Answer: Option D
5. Consider the following statements: 1. Baking soda is used in fire extinguishers 2. Quicklime is used in the manufacture of glass 3. Gypsum is used in the manufacture of plaster of Paris Which of the statements given above is/are correct?

A. 1 and 2 B. 2 and 3 C. 1 only D. 1, 2 and 3

Answer: Option D

1. Vaseline was applied to both surfaces of the leaves of a plant. Which of the following process/processes would be affected? 1. Photosynthesis 2. Respiration 3. Transpiration Select the correct answer using the code given below:

A. 1 and 3 only B. 2 only C. 2 and 3 only D. 1, 2 and 3

Answer: Option C
2. Consider the following statements: 1. Red algae appear black since they do not absorb light of any wavelength 2. Yeast is commonly used for fermentation prior to banking 3. Olive oil is extracted from seeds of olive plants 4. Commercially used saffron represents dried stigmas from flowers. Which of the statements given above are correct?

A. 1, 2 and 3 B. 1 and 3 only C. 2 and 3 only D. 2 and 4

Answer: Option D
3. Which of the following leaf modifications occurs/occur in desert areas to inhibit water loss? 1. Hard and waxy leaves 2. Tiny leaves or no leaves 3. Thorns instead of leaves Select the correct Answer using the codes given below.

A. 1 and 2 only B. 2 only C. 1 and 3 only D. 1, 2 and 3

Answer: Option D
4. Consider the following kinds of organisms: 1. Bacteria 2. Fungi 3. Flowering plants Some species of which of the above kinds of organisms are employed as biopesticides?

A. 1 only B. 2 and 3 only C. 1 and 3 only D. 1, 2 and 3

Answer: Option D
5. Bowman’s Capsule’ works as a part of the functional unit of which among the following human physiological system?

A. Circulatory System B. Respiratory System C. Excretory System D. Reproductive System

Answer: Option C