X,Y,Z hydrocarbons molecular formula are CH₄, C₂H₄, C₂H₂, these three are passed through porcelain tube containing ammonical cuprous chloride. The out coming gases would be

Which of the following functional group shows +R effect

In the extraction of iron from haematite,the charge used is haematite,coke and lime stone in the following weight ratio

The salt of phosphorous acid are called

pH of pure H₂O at 25⁰C is

Bauxite is boiled with aqueous NaOH solution. Sodium meta aluminate solution is formed. This part in the metallurgy of aluminium is called

A mixture of Boran trichloride and hydrogen is subjected to silent electric discharge to form ’A’ and HCl. ’A’ is mixed with NH₃ and heated to 200⁰ C to form B. The formula of B is

Ethylene reacts with Br₂ in CCl₄ to from X. When X is reacted with alcoholic KOH. Y is formed. Here X and Y are

The molar concentrations of A,B and C at equilibrium for the reaction A+2B⇔3C are 2,3 and 4 moles/lit respectively. Its Kc is

Which of the following is obtained in carbyl amine reaction from aniline