Which gas turns lime water milky ?

Observe the table: Which gas turns lime water to milky white?

A student takes about 2ml of ethanoic acid in a test tube and adds a pinch of NaHCO_3 to it. He reports the following. Immediately a colourless and odourless gas evolves with a brisk effervescene. The gas turns lime water milky The gas burns with an explosion when a burning splinter is brought near it The gas extinguishes the burning splinter.

Which of the following gas turns lime water to milky _____

When Ethanoic acid is added to a solution of substance X, a colourless and odourless gas Y is liberated. The gas Y turns lime-water milky. The substance X is ____

A bluish green coloured compound 'A' on heating gives two products 'B' and 'C'. A metal 'D' is deposited on passing H_(2) through heated 'B'. The compound 'A' and 'B' are insoluble in water. 'B' is black in colour, dissolves in HCI and on treatment with K_(4)[Fe(CN)_(6)] gives a chocolate brown ppm of compound 'E'. 'C' is colourless, odourless gas and turns lime water milkly. Compound 'A' is

A bluish green coloured compound 'A' on heating gives two products 'B' and 'C'. A metal 'D' is deposited on passing H_(2) through heated 'B'. The compound 'A' and 'B' are insoluble in water. 'B' is black in colour, dissolves in HCI and on treatment with K_(4)[Fe(CN)_(6)] gives a chocolate brown ppm of compound 'E'. 'C' is colourless, odourless gas and turns lime water milkly. The compounds 'B' and 'C' are respectively

A bluish green coloured compound 'A' on heating gives two products 'B' and 'C'. A metal 'D' is deposited on passing H_(2) through heated 'B'. The compound 'A' and 'B' are insoluble in water. 'B' is black in colour, dissolves in HCI and on treatment with K_(4)[Fe(CN)_(6)] gives a chocolate brown ppm of compound 'E'. 'C' is colourless, odourless gas and turns lime water milkly. The compounds 'D' and 'E' are respectively

The gas(es) which turn lime water milky is (are)

A solution reacts with crushed egg-shells to give a gas that turns lime-water milky, the solution contains ………………………..

One of the following solutions reacts with crushed egg shells to give a gas that turns lime- water milky, the solution is of____