Question

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:

Solution

Correct option is

S, H and Na

 

* One oxide turns lime water milky thus it can be CO2 or SO2

* Oxide turns CuSO4 (anhydrous) blue thus oxide is H2O   

* Oxide is basic (pH = 9) thus it is alkaline.

SIMILAR QUESTIONS

Q1

Which of the following halogen has highest bond dissociation energy?

Q2

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

Q3

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

Q4

Chlorine acts as a bleaching agent only in presence of:

Q5

The set with correct order of acidity is:

Q6

The structure of XeO3 is:

Q7

White phosphorus may be removed from red phosphorus by:

Q8

The strongest reducing agent amongst the following is:

Q9

Xenon forms compounds only with:

Q10

Three allotropes (A), (B) and (C) of phosphorus in the following change are respectively: