Question

4 g of copper was dissolved in concentrated nitric acid. The copper nitrate on strong heating gave 5 g of its oxide. The equivalent weight of copper is 

Solution

Correct option is

32

 

  

oxygen combines with Cu = 4 g.

SIMILAR QUESTIONS

Q1

Number of atoms in 558.6 g Fe (molar mass Fe = 55.86 g mol–1)is 

Q2

3 g of an oxide of a metal is converted to chloride completely and it yielded 5 g of chloride. The equivalent weight of the metal is 

Q3

 

What will be the volume of the mixture after the reaction?

(g)NH3 (1L) + (g) HCl (1.5L) → NH4Cl (s)

Q4

A compound has haemoglobin like structure. It has one Fe. It contain4.6% of Fe. The approximate molecular mass is

Q5

In Haber process, 30 litre of dihydrogen and 30 litres of dinitrogen were taken for reaction which yielded only 50% of the expected product. What will the composition of the gaseous mixture under the aforesaid condition in the end?

Q6

What volume of hydrogen gas at 273 K and 1 atm pressure will be consumed in obtaining 21.6 g elemental boron (atomic mass = 10.8) from the reduction of boron trichloride by hydrogen? 

Q7

Which has maximum number of atoms? 

Q8

The maximum number of molecules is present in

Q9

Number of atom of oxygen present in 10.6 g Na2CO3 will be 

Q10

A sample of phosphorous trichloride (PCl3) contains 1.4 moles of the substance. How many atoms are there is the sample?