Question

Choose the correct word or letter from the brackets to complete the sentence and write
only that down as the answer.

i.Ammonium sulphate is an example of a/an
[hydrous/
anhydrous/crystalline] salt.
(ii) The relative atomic mass of an element expressed in grams is known as -
[a.m.u./gram atom/gram molecular mass]
(iii)
The element which shows variable valency is [nickel/chromium/tin]
(iv)
The reaction of iron with steam, liberating hydrogen gas is a
[displacement / reversible / catalytic) reaction.
(v) The soluble salt formed in the precipitation reaction between two salt solutions zinc nitrate & sodium carbonate is
(zinc carbonate / sodium nitrate / zinc bicarbonate).
​

Answer 1

Answer:

1. Crystalline salt

2. a. m. u.

3. tin

4.catalytic

5. sodium nitrate