List of practice Questions

Benzyl amine reacts with nitrous acid to form

$BeO$ is insoluble but $BaO$ is soluble as

Bernoulli's theorem is applicable in the case of

Best way to prevent rusting of iron is by

Benzoquinone is prepared by reaction of phenol with

Benzyl alcohol is obtained from benzaldehyde by

Benzene does not undergo addition reaction easily because

Benzene on ozonolysis yields

Benzenediazonium chloride on treatment with KCN in presence of copper powder gives :

BeCl in vapour state and solid state -

_______ being highly reactive is used in the extraction of chromium and manganese.

Bells are made of metal and not of wood because

Benedict solution provides

Benzene diazonium chloride reacts with hypophosphorous acid to produce:

$ {Be2C +H2O-> BeO +X}$ $ {CaC2 + H2O->Ca(OH)2 + Y}$ $ {Mg2C3 + H2O-> Mg(OH)2 + Z}$ $X, Y$ and $Z$ are respectively

Beat phenomenon is physically meaningful only, if

Beats are produced by the superposition of two waves of nearly equal frequencies. Of the following, the correct statement is

Beats are the result of

Bat pollinated plants are known as

Bath sponge has

$ {BCl_3}$ does not exist as dimer but $ {BH_3}$ exists as dimer $ {(B_2H_6)}$ because

$ {BCl_3}$ is planar molecule because in this molecule boron is

barometer reads 75 cm of mercury. When $2.0 \,cm^3$ of air at atmospheric pressure is introduced into the space above the mercury level, the volume of this space becomes $50 \,cm^3$. The length by which the mercury column descends is

Based on the figure given below which of the following statements is not correct ?

Basic unit of ecological hierarchy is