Question

Give one word or a phrase for each of the following :- [5]

1. A solid deposit of a substance that has sublimed.

2. The change of state from gas or vapour to liquid on cooling.

3. The number of atoms present in a molecule of an element is.

4. The substance that acts as a catalyst in living organisms.

5. The process to convert vegetable oils into fats.
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Answer 1

1. A solid deposit of a substance that has sublimed - Sublimate.

2. The change of state from gas or vapour to liquid on cooling - Condensation.

3. The number of atoms present in a molecule of an element is Avogadro's Number(6.023 x 10^23 atoms)

4. The substance that acts as a catalyst in living organisms - Enzymes.

5. The process to convert vegetable oils into

fats - Hydrogenation.

I hope it helps you my friend.