Question

(i) A non-metal X exists in two
different forms Y and Z. Y is
the hardest natural substance
whereas Z is a good conductor
of electricity. Identify X,Y,Z (ii)
A element, X, on reaction with
oxygen forms an oxide XO2.
The oxide when dissolved in
water turns blue litmus red>
Stare whether element X is a
metal or a non-metal. (iii) Name
the metal which is alloyed with
copper to make bronze. ​

Answer 1

Answer:

(i) A non-metal X exists in two

different forms Y and Z. Y is

Y, that is, the hardest naturally occurring substance in the world is diamond.

Z is a good conductor

of electricity.

The substance Z, which is a good conductor of electricity is Graphite.

Both diamond and Graphite come from Carbon, a non-metal which lacks lustre, and also does not conduct electricity.

Carbon and diamond and graphite have different properties due to the crystal structures of each.

Hope it helps

Answer 2

Answer:

Explanation:

i. X-  Carbon

Y - Diamond

Z- Graphite

ii. X - non metal

Since non-metallic oxides are acidic in nature and form acids when disolved in water.

iii. Tin