Question

(b) Choose the correct answer from the option given below. [5]



(i) Water has the maximum density at.

( 1) OoC ( 2) 4oC ( 3) 3oC (4) 32oC

(ii) Reaction in which a complex molecule breaks into simple molecule is known as

(1) Displacement Reaction (2) Decomposition (3) Respiration (4) Displacement reaction

(iii) Which of the following reaction represent a synthesis reaction

(1) Respiration (2) hydrolysis (3) photosynthesis (4) electrochemical reaction

(iv) Latent heat of fusion of ice is

(1)80 cal/g (2) 336 cal/g (3) 540 cal/g (4) 540 j/g

(v) On increase of pressure the boiling point of water.

(1) increases (2) decreases (3) first increase than decrease (4) remain same​

Answer 1

Answer:

I . 2

Ii .2

Iii. 3

iv. 2

v. 1

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Answer 2

Answer:

(i) - (2)

(ii) - (2)

(iii) - (3)

(iv) - (2)

(v) - (1)