Identify the correct statement(s) in relation to the following reaction.

$\mathrm{Zn}+2\mathrm{HCl}\to {\mathrm{ZnCl}}_2+{\mathrm{H}}_2$

(a) Zinc is acting as an oxidant

(b) Chlorine is acting as a reductant

(c) Hydrogen ion is acting as an oxidant

(d) Zinc is acting as a reductant

The correct choice among the above is -

1. (a, b)

2. (b, c)

3. (c, d)

4. (a, d)

Identify the correct statements regarding the given reaction:

${\mathrm{P}}_4+3{\mathrm{OH}}^{-}+3{\mathrm{H}}_2\mathrm{O}\to {\mathrm{PH}}_3+3{\mathrm{H}}_2{\mathrm{PO}}_2^{-}$

1. (a, b)

2. (b, c)

3. (c, d)

4. (a, d)

H₂S (g) + Cl₂ (g) → 2 HCl (g) + S (s)

The correct statement(s) in the balanced equation is(are):

a. H₂S is oxidised
b. Cl₂ is reduced
c. H₂S is reduced
d. Cl₂ is oxidised

1. a, b
2. b, c
3. c, d
4. a, d

Match the items in column I with column II.
(O.S = oxidation state)

Match the items in column I with the items in column II.

 
1. a=iii; b=ii; c=iv; d=i
2. a=iii; b=iv; c=i; d=ii
3. a=ii; b=iii; c=iv; d=i
4. a=iv; b=i; c=iii; d=ii

 

Which of the following statement(s) is/are not true about the following decomposition reaction?

$2{\mathrm{KClO}}_3\to 2\mathrm{KCl}+3{\mathrm{O}}_2$

 

The correct choice among the above is -

1. (a, b, d)

2. (b, c, d)

3. (b, d, a)

4. None of the above

For the reaction:
Fe₃O₄ (s) + Al (s) → Fe (s) + Al₂O₃ (s)
The correct statement(s) in the equation is(are):

1. a, c
2. a, b
3. b, c
4. c, d