Question

White phosphorus may be removed from red phosphorus by:

Solution

Correct option is

Heating with an alkali

Only white phosphorous can reacts with alkali due to high reactivity (strain molecule). This reaction is used for separation of white phosphorus and red phosphorous.

SIMILAR QUESTIONS

Q1

Which of the following is highly acidic than others?

Q2

Which of the following halogen has highest bond dissociation energy?

Q3

One mole of calcium phosphide on reaction with excess water gives:

Q4

KF combines with HF to form KHF2. The compound contains the species: 

Q5

Chlorine acts as a bleaching agent only in presence of:

Q6

The set with correct order of acidity is:

Q7

The structure of XeO3 is:

Q8

The strongest reducing agent amongst the following is:

Q9

A certain compound on burning in air forms three oxides. One of the oxides turned lime water milky, the other turned anhydrous CuSO­4 blue and third formed a solution of pH = 9. Compound is formed of:

Q10

Xenon forms compounds only with: