Which among the following element does not liberate H₂ gas on reaction with NaOH?

An organic compound X on treatment with pyridium dichromate in dichloromethane gives compound Y.Compound Y reacts with I₂ and alkali to form idoform.The compound X is

HCl+H₂O?H₃O⁺+Cl^-

A Conjugate base of HCl is Cl^-

B Conjugate base of H₃O⁺ is H₂O

C Conjugateacid base pair is HCl and H₃O⁺

D Conjugateacid base pair is Cl^- and H₂O

For the reversible reaction C₂H₄ + H₂ ⇔ C₂H₆ the equilibrium constant can be expressed in units of

The conjugate base of HSO₄^- ion is:

The charge required to reduce 1 mole Cr₂O₇^-2 to Cr⁺³ ions is

The oxidation states of nitrogen in NH₄NO₃ is /are

28g of N₂ and 6g of H₂ were mixed initially .At equilibrium 17g of NH₃ was formed.The weight of N₂ and H₂ at equilibrium are respectively

The correct match is

For a reaction A+B→ products,the rate of the reaction was doubled.When the concentration of A was doubled.When the concentration of A and B were doubled.The order of the reaction with respect to A and B are