Question

A. Multiple Choice Questions:
1. In solids
a. Attraction between molecules is strong and they vibrate by changing their position
b. Attraction between molecules is strong and they vibrate about a fixed position
c. Attraction between molecules is weak and they do not vibrate strongly.
d. Attraction between molecules is weak and they vibrate strongly.
2. Chemical changes are-
a. Reversible
b. Irreversible
C. Changes involving formation of one or more new substances
d. Both b. and c.​

Answer 1

Answer:

1. b
2. b

Explanation:

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Answer 2

Answer:

1, Attraction between molecule is weak and they don't vibrate strongly. 2, Both b and c

Explanation:

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