When $F_{2}$ reacts with hot and concentrated alkali, then which of the following will be obtained?
(i) $O F_{2}$
(ii) $O_{2}$
(iii) $H_{2} O$
(iv) $N a F$

(i), (iii) and (iv)

No worries! We‘ve got your back. Try BYJU‘S free classes today!

(ii) and (iii)

No worries! We‘ve got your back. Try BYJU‘S free classes today!

(ii), (iii) and (iv)

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

All of the above

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is C (ii), (iii) and (iv)
(i) Fluorine does not form oxyacids as it is most electronegative element of Periodic Table.
(ii) $2 F_{2} + N a O H H o t - --------- \to 4 N a F + O_{2} + 2 H_{2} O$
(iii) $F_{2} + 2 N a O H C o l d - --------- \to 2 N a F + O F_{2} + H_{2} O$
$∴ F_{2}$ reacts with hot $N a O H$ to give $N a F, O_{2}$ and $H_{2} O$ .

Suggest Corrections

Similar questions

$C a O (s) + H_{2} O (l) \to C a (O H)_{2} (a q) + h e a t$

What can be inferred from the above reaction?

(i) $C a O$ is solid.

(ii) $C a O$ reacts with water.

(iii) $H_{2} O$ is liquid.

(iv) $H_{2} O$ is in vapour state.

(v) $C a (O H)_{2}$ forms a solution with water.

(vi) The reaction is exothermic.

In which of the following molecules carbon atom marked with asterisk (*) is asymmetric?

(a) (i), (ii), (iii) and (iv) (b) (i) ,(ii) and (iii)

You are provided with the following materials:

(i) Magnifying glass

(ii) Mirror

(iii) Stainless steel plate

(iv) Glass tumbler

Which of the above materials will you identify as transparent?

(a) (i) and (ii) (b) (i) and (iii) (c) (i) and (iv) (d) (iii) and (iv)

Question 6
What happens when calcium is treated with water?

(i) It does not react with water.
(ii) It reacts violently with water.
(iii) It reacts less violently with water.
(iv) Bubbles of hydrogen gas formed stick to the surface of calcium.

a) (i) and (iv) (b) (ii) and (iii)

Q. Question 1
Given below from (i) to (iv) are some food items.

(i) Boiled and mashed potato
(ii) Glucose solution
(iii) A slice of bread
(iv) Mustard oil

Which of the above will give blue-black colour when tested with iodine?

(a) (i) and (ii)
(b) (i) and (iii)
(c) (ii) and (iii)
(d) (iii) and (iv)

Join BYJU'S Learning Program

When F2 reacts with hot and concentrated alkali, then which of the following will be obtained?(i) OF2(ii) O2(iii) H2O(iv) NaF

When $F_{2}$ reacts with hot and concentrated alkali, then which of the following will be obtained?
(i) $O F_{2}$
(ii) $O_{2}$
(iii) $H_{2} O$
(iv) $N a F$