Insulin Contains 3.4% sulphur. What Will Be The Minimum Molecular Weight Of Insulin?

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

In the following reaction, which choice has value twice that of the equivalent mass of the oxidising agent?  

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

The equivalent mass of chlorine is 35.5 and the atomic mass of copper is 63.5. The equivalent mass of copper chloride is 99.0. Hence, formula of copper chloride is