Question

(а a) soter extra b) eat less c) shed fur d) turn colours II. Activiyt-2: There are more than 30 words hidden in this puzzle. Find at least 20 of them. You can move left, right, up, down or diagonally. But the squares of the letters that you choose must touch as shown. IC C a h 09 r cat the u t S e 1 CD n t d m i р S O с b f 1 р 1. Write Opposite of the given words:​

Answer 1

Answer:

Certain blank spaces are left in the following table and these are labelled as A,B,C,D and E. Identify each of them.

Lab preparation of Reactants used Products formed Drying agent Method of colletion

(i) HCl gas NaCl+H

2

SO

4

A NaHSO

4

+HCl

________ conc.H

2

SO

4

B upward

displacement

of air

________

(ii) NH

3

gas C

Mg

3

N

2

+H

2

O

________ Mg(OH)

2

NH

3

D

Quicklime

____________ E

downward

displacement

of air

__________

Lab preparation of ammonia gas involves the reaction between Mg

3

N

2

and H

2

O

2

to form sodium magnesium hydroxide and ammonia gas. Quicklime is the drying agent. Ammonia gas is obtained by downward displacement of air as ammonia gas is ligher than air.