A mixture of formic acid and oxalic acid is heated with concentrated `H_(2)SO_(4)`. The gas evolved is collected and treated with KOH solution. The volume of the solution decreases by 1/6 th of its original volume. Find the molar ratio of the two acids in the original mixture.

A mixture of 2.3 g formic acid annd 4.5 g oxalic acid is treated with con.c H_(2)SO_(4) . The evolved gaseous mixture is passed through KOH pellets. Weight (in g ) of the remaining product at STP will be-

A mixture of 2.3 g formic acid and 4.5 g oxalic acid is treated with conc. H_(2) SO_(4) . The evolved gaseous mixture is passed through KOH pellets . Weight (in g ) of the remaining product at STP will be -

Heating of oxalic acid with conc. H_2SO_4 evolves:

A gas is suddenly compressed to 1/4th of its original volume. Calculate the rise in temperature. The original temperature being 27^@C and gamma=1.5

What is the volume of concentrated H_2SO_4 that will be required to prepare 2L of a 5(M) sulphuric acid solution?

100 cm^(3) of a mixture of CO, C_(2)H_(6) and N_(2) is exploded in presence of excess O_(2) . On cooling, the observed contraction in volume and the volume of CO_(2) formed are both equal to the volume original mixture. Find the volumetric composition of the original volume.

10ml 0.05 N H_2SO_4 solution is mixed with 10 ml 0.1 N NaOH solution. The pH of the final mixture is

To what volume must one litre of 1MC H_3COOH solution be diluted so that the pH of resulting solution becomes twice the original value. [Given: K_a=1.8xx10^-5]

30 mL of a mixture of CO and CO_(2) , mixed with 10 mL of oxygen, was exploded by electric spark. The gas mixture produced was mixed with KOH solution and thoroughly shaken. 5 mL of oxygen was left behind. What was the composition of the original mixture [volume was measured at STP].

On heating copper turnings with conc. H_(2)SO_(4) , a colourless gas with pungent smell is evolved which decolourises acidified KMnO_(4) solution. Identify the gas.