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Which of the following statements about ‘dry ice’ are correct ?

1. It is useful refrigerant

2. On heating, it turns into a liquid

3. It has acidic properties

4. It causes burns when pressed against the skin

(a) 1 and 3

(b) 1,2 and 3

(c) 2 and 4

(d) 1,3 and 4

Which of the following statements about ‘dry ice’ are correct ? 1. It is useful refri..

Answer / avdhesh


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