Redox and Equivalent ConceptHard

Question

The specific heat of a metal is 0.26. The chloride of the metal (always monomer) has its molecular mass 95. The volume of hydrogen gas that 1.2 g of the metal will evolve at 0o C and 1 atm, if it is allowed to react with excess of an acid, is

Options

A.2.24 L
B.1.12 L
C.0.56 L
D.5.611 L

Solution

Approximate atomic mass of metal =$\frac{6.4}{0.26} = 24.62$

Let the metal chloride be MClV.

$24.62 + V \times 35.5 \approx 95 \Rightarrow V = 2$

∴ Exact atomic mass of metal = 95 – 2 × 35.5 = 24

Now, neq metal = neq H2

Or $\frac{1.2}{24} \times 2 = \frac{V_{H_{2}}}{22.4\text{ L}} \times 2 \Rightarrow V_{H_{2}} = 1.12\text{ L}$

Create a free account to view solution

View Solution Free
Topic: Redox and Equivalent Concept·Practice all Redox and Equivalent Concept questions

More Redox and Equivalent Concept Questions

In which of the following compound, iron has the lowest oxidation state?...A quantity of 10 g of a sample of silver, which is contaminated with silver sulphide, gave 11.2 ml of hydrogen sulphide ...An oxide, X2O3 is oxidized to XO4− by Cr2O72− in acid medium. The number of moles of X2O3 oxidized per mole of Cr2O72− i...Two acids H2SO4 and H3PO4 are neutralized separately by the same amount of an alkali when sulphate and dihydrogen orthop...Expermentally it was found that a metal oxide has formula M0.98O. Metal M, is present as M2+and M3+ in its oxide. Fracti...