Question

1 mol each of H3PO2, H3PO3 and H3PO4 will neutralise x mol of NaOH, ymol of Ca(OH)2 and z mol of Al(OH)3 (assuming all as strong electrolytes). xy, z are in the ratio of:    

Solution

Correct option is

1 : 1 : 1

 

H3PO2 – monobasic = 1 OH = 1 NaOH   

H3PO3 – dibasic = 2OH = 1 Ca(OH)2

H3PO4 – tribasic = 3OH = 1 Al(OH)3.   

SIMILAR QUESTIONS

Q1

Concentrated nitric acid oxidize cane sugar to:

Q2

(NH4)2Cr2O7 on heating liberates a gas. The same gas will be obtained by:

Q3

Which one of the following oxides of nitrogen is solid?

Q4

N2O is isoelectronic with CO2 and , which is the structure of N2O?

Q5

If O2 is removed from the formula of anhydride of HNO2, then the formula of the resulting compound satisfies which of the following properties?

Q6

Ammonia, on reaction with hypochlorite anion, can form:

Q7

In P4 (tetrahedral):

Q8

Which of the following hydride is the most reducing?

Q9

Which of the following has the highest bond length? 

Q10

Which of the following has correct increasing order of hydrolysis?