Question

2. R
(d) none of these
3. R.
4 R
4. Black coating on silver is due to the formation of :
(a) silver oxide
(b) silver sulphide (c) silver nitrite
5. Which metal is used to make bodies of space shuttles ?
(a) Tungsten
(b) Titanium
(c) Platinum
6. Gold and silver are used to make jewellery because they are :
(a) precious
(b) beautiful
(c) ductile
(d) Any of them
5. R
Answ
(d) none of these
1. H​

Answer 1

Answer:

6. ka answer ductile hoga

Answer 2

Black coating on silver is due to the formation of :

(a) silver oxide

(b) silver sulphide ✔

(c) silver nitrite

(d) none of these

Which metal is used to make bodies of space shuttles ?

(a) Tungsten

(b) Titanium ✔

(c) Platinum

(d) none of these

Gold and silver are used to make jewellery because they are :

(a) precious

(b) beautiful

(c) ductile ✔

(d) Any of them