Question

1. From the list given below, select the word(s) required
to correctly complete blanks (i) to (v) in the
following passage :
ammonia, ammonium carbonate, carbon dioxide,
hydrogen, hydronium, hydroxide, precipitate, salt,
water.
A solution X turns blue litmus red, so it must
contain:
(i) ....................... ions; another solution Y turns
red litmus blue and therefore, must contain
(ii) ................. ions. When solutions X and Y are
mixed together, the products will be a (iii) ........
and (iv) .................
........... . If a piece of magnesium
were put into solution X, (u) ........
gas
would be evolved.
(Note : Words chosen from the list are to be used
only once. Write the answers as (a) (i), (ii) (iii) and
so on. Do not copy the passage.)​

Answer 1

Answer:

hydronium

hydroxide

salt

water

hydrogen

Explanation:

1.hydronium

2.hydroxide

3.salt

4.water

5.hydrogen

Answer 2

Answer:

i) Hydronium

ii) Hydroxide

iii) Salt

iv) Water

v) Hydrogen