Question

F2 is formed by reacting K2MnF6 with

Solution

Correct option is

SbF6

 

 

In this reaction, the stronger Lewis acid SbF6 displaces the weaker one, MnF4 from its salt. MnF4 is unstable and readily decomposes to give MnF3 and fluorine.

SIMILAR QUESTIONS

Q1

 

The basic character of the transition metal monoxide follows the order

(At. No. of Ti = 22, V = 23, Cr = 24, Fe = 26)

Q2

The metallic oxide which impart purple colour to pottery is

Q3

The colour of 62Sm3+ is yellow. The expected colour of 66Dy3+ is

Q4

The actinoids showing +7 oxidation state are

Q5

The lanthanoids contraction relates to

Q6

A reduction in atomic size with increase in atomic number is a characteristic of elements of

Q7

The most convenient method to protect bottom of ship made of iron is

Q8

Railway wagon axles are made by heating rods of iron embedded in charcoal powder. The process is known as

Q9

Which of the following are d-block elements but not regarded as transition elements?

Q10

Verdigris is