Question on Atomic Weight

A mono atomic ion has the same atomic number and same atomic weight as its neutral atom. Is this statement true or false?

Question on Addition Reaction

When but-3-en-2-ol reacts with aq. HBr, how many products are formed and what are they?

Question on Photochemical Chlorination

Isopentane, (CH₃)₂CH.CH₂.CH₃ can form four isomeric monochloro derivatives on photochemical Chlorination. How many of these are optically active?

Question on Nitrogen Oxides

Which oxide of Nitrogen is produced on heating a mixture of ammonium sulphate and sodium nitrate?

Question on Gaseous State

A gas is heated in such a way that its pressure and volume both becomes double. Then by decreasing temperature, some of the molecules of the air have been taken in container to maintain the doubled volume and pressure. Assuming one-fourth of initial number of moles has been taken in for the purpose, by what fraction the temperature must have been raised finally of initial absolute temperature?

Question on Dehydration

What does Orthophosphoric Acid give on strong heating?

Question on Nodal Planes

How many nodal planes are present in a p_x orbital?

Question on Gaseous State

If the Compressibility Factor of a gas is less than unity at STP, will the molar volume of the gas be greater or lesser than 22.4L at STP?

Question on pH

A weak base BOH reacts with 0.1M HCl. The dissociation constant of BOH is 10^–6. When 50 ml of 0.1N BOH reacts with HCl, what will the pH of the solution be at the neutralization point of the reaction?

Question on Chemical Kinetics

If 10^–5% reactant molecules cross over the barrier in transition state at 298K, what is the activation barrier needed to cross the transition state?

Question on Qualitative Analysis

Can Tollen’s Reagent be used to distinguish between methanoic and ethanoic acids?

Question on Redox Reaction

1 mole of hydrazine, N₂H₄ reacts with one mole of selenic acid, H₂SeO₃, the latter is reduced to selenium. What is hydrazine converted into? Is it N₂ or NH₃?