An Organic Compound Contains 20.0% C, 6.66% H, 47.33% N And The Rest Was Oxygen. Its Molar Mass Is 60 g . The Molecular Formula Of The Compound Is

0.156 g of an organic compound on heating with fuming HNO₃ and AgNO₃ gives 0.235 g of AgI. Calculate the percentage of the iodine in the compound.

0.1170 g of an organic compound on heating with conc. HNO₃ and silver nitrate in Carius furnace gave 0.42 g of AgCl. Find the percentage of chlorine in the compound.

On heating 0.32 g of an organic compound with concentrated nitric acid and barium chloride, 0.932 g barium sulphate was obtained. Calculate the percentage of sulphur in the given compound.

6 g of an organic compound containing oxygen is heated with graphite and carbon monoxide formed is quantitatively converted to 8.8 g CO₂ on reaction with I₂O₅. Calculate percentage of oxygen in the compound.

For the reaction,

5 moles of X and 9 moles of Y will produce

The function of boiling the sodium extract with conc. HNO₃ before testing for halogen is:

If 0.5 mole of  is mixed with 0.2 mole of  the maximum number of moles of  that can be formed is

Sodium nitroprusside when added to an alkaline solution of sulphide ions produces a colouration :

276 g of silver carbonate on being strongly heated yields a residue weighing

In the following reaction,

2 mol MnO₂ reacts with 4 mol of HCl to form 11.2 L  at STP. Thus, per cent yield of  is