Question

stions
A. TICK (THE CORRECT CHOICE AMONGST THE FOLLOWING :
1. Sacrificial protection is the coating of any substance with :
(a) Nickel
(b) Zinc
(c) Manganese
(d) Copper
2. Chemical added during the process of loading is :
(a) Aluminium nitrate
(b) Aluminium oxide
(Alum
(d) None of these.
3. The density of water is maximum at:
(a) 0°C
(b) 4°C
(c) 4°C
(d) -1°C.
4. Permanent hard water forms:
a) Good lather with soap solution (b) Sticky scum with soap solution
(c) Air bubbles in soap solution etons of calcium and magnesium.
5. Latent heat of vaporisation is :
(a) 2257 J/g
(b) 2268 J/g
(c) 226 J/g
(d) 126 J/g.
B FILL IN THE BLANKS :
tor This means that in ice the molecules have
space bet​

Answer 1

Answer:

1. (d) Copper

2. (b) Aluminium oxide

3. (c) 4⁰ C

4. (b) Sticky scum and magnesium

5. (d) 126 J/g.

is your right answer

Good morning

Have a wonderful day

Always be happy

Answer 2

Answer:

(1) -- B. Zinc

(2)-- POTASH ALUM.

(3)-- (4°C)__39°f