List of top Chemistry Questions asked in Manipal

How many coulombs of electricity are required for reduction of $1$ mole of $ MnO_{4}^{-} $ to $ Mn^{2+}$ ?

Which of the following metal sols cannot be prepared by Bredig's arc metliod?

tert-butyl methyl ether on heating with anhydrous $HI$ in ether gives

When $o$- or $ p- $ phenolsulphonic acid is treated with bromine water, the product formed is

In Williamson's synthesis, ethoxyethane is prepared by

In which of the following compounds $ -OH $ group is least reactive?

If $ N{{a}^{+}} $ ion is larger than $ M{{g}^{2+}} $ ion and $ {{S}^{2-}} $ ion is larger than $Cl^-$ ion, which of the following will be stable soluble in water?

An organic compound, $ {{C}_{3}}{{H}_{6}}O $ does not give a precipitate with $2, 4$-dinitrophenyl hydrazine reagent and does not react with metallic sodium. It could be

One mole of an ideal gas at an initial temperature of $T \,K$ does $6R$ joules of work adiabatically. If the ratio of specific heats of this gas at constant pressure and at constant volume is $5/3$, the final temperature of gas will be

Which one of the following is a chain growth polymer?

The helical structure of protein is stabilized by

The standard emf of a galvanic cell involving cell reaction with $ n=2 $ is found to be $0.295\, V$ at $ 25{}^\circ C $ .The equilibrium constant of the reaction would be (Given: $ F=96500\,C\,mo{{l}^{-1}}; $ $ R=8.314\,J{{K}^{-1}}mo{{l}^{-1}} $ )

A sequence of how many nucleotides in messenger RNA makes a codon for an ammo acid?

$ {{H}_{2}}O $ is dipolar, whereas $ Be{{F}_{2}} $ is not. It is because

Number of chiral carbon atoms in $ {{\beta }-{D-(+)-}} $ glucose is

Aniline when diazotised in cold and then treated with dimethyl aniline gives a coloured product. Its structure would be:

Chloropicrin is obtained by the reaction of

In a regular octahedral molecule, $ M{{X}_{6}} $ the number of $ X-M-X $ bonds at $ 180{}^\circ $ is

Reaction of $HBr$ with propene in the presence of peroxide gives

Which is the best description of behaviour of bromine in the reaction given below? $ H_2O + Br_2 \to HBr + HOBr$

The $ -OH $ group of an alcohol or the $ -COOH $ group of a carboxylic acid can be replaced by $ -Cl $ using

Which one of the following can be oxidized to the corresponding carbonyl compound?

$ C{{N}^{-}} $ is strong field ligand. This is due to the fact that

Which one of the following structures represents the peptide chain?

Which of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?