In The Following Reaction, Which Choice Has Value Twice That Of The Equivalent Mass Of The oxidising agent?                

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

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

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 

In Kjeldahl’s method, nitrogen present is estimated as :

Two elements X (at. wt. 75) and Y (at. wt.16) combine to give a compound having 75.8% of X. the formula of compound will be

One atom of an element weighs  Its atomic mass is

Arsenic forms two oxides, one of which contains 65.2% and the other 75.7% of the element. Hence, equivalent masses of arsenic are in the ratio