Question

help me fast pls pls​

Answer 1

Answer:

9)Which of the following is not a mineral acid?

(a) Hydrochloric acid

(b) Citric acid

(c) Sulphuric acid

(d) Nitric acid

Answer. (b)

10) Identify the correct representation of reaction occurring during the chloralkali process

(a) 2NaCl(l) + 2H2O(l) → 2NaOH(l) + Cl2 (g) + H2 (g)

(b) 2NaCl(aq) + 2H2O(aq) → 2NaOH(aq) + Cl2 (g) + H2 (g)

(c) 2NaCl(aq) + 2H2O(l) → 2NaOH(aq) + Cl2 (aq) + H2 (aq)

(d) 2NaCl (aq) + 2H2O (l) → 2NaOH (aq) + Cl2 (g) + H2 (g)

Soln:

The answer is (d) 2NaCl (aq) + 2H2O (l) → 2NaOH (aq) + Cl2 (g) + H2 (g)

11) red

12)red

13) Natural acid or organic acid

14) olfactory indicators

15) antacid

16)True

18)true

19)true

20) A - i

B-ii

C-iv

D-iii

I did as much as I can. I can't do more as I am only in class 9 and haven't studied a lot.

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