Question

4. Atoms are neither lost nor....in a chemical reaction. Jou
Choose the correct option.
1. Which of the following is the symbol of gold?
(a) Gd
(b) Ag
(c) Au
2. Which of the following is a divalent radical?
(a) Hydroxide
(b) Nitrate
(c) Sulpha
3. The valency of sulphur in sulphur dioxide is
(a) 1
(b) 2
(c) 3
4. How many times greater is the valency of N in NH, than th
(a) 2
(b) 3
(c) 4
Match the columns A and B.
А
B
(a) Helium
(1) Hg 2​

Answer 1

Answer:

Atoms are neither lost nor....in a chemical reaction. :-

destroyed is the answer

1. Ag

2. sulphate

3. 4 will be the answer...

4. 2

hope it may help u☺️

Answer 2

Answer:

1.(c) Au

2.c sulphate

3.b 2

4.b 3

the symbol of helium is He

4.(b)