List of practice Questions

Plants are killed in winter by frost because
A cylindrical vessel is filled with a liquid of density $d$ upto a height $h$, if the vessel is at rest, then the pressure at the bottom is
Pick the correct statement
Pick out the incorrect statement from the following
Pick out the correct statement from the following:
�Organ of Jacobson� helps in
Organ of Corti helps in
On monochlorination of $n$-pentane, the number of straight chain isomers formed is
Occurrence of endemic species in South America and Australia is due to
Nuclei of isotopes differ in
Nitrogen is absorbed by plants in form of
Myxoedema occurs due to
Myelin sheath is formed by
Mutation may be described as
Multilobed nucleus and granular cytoplasm are characteristics of which of the following type of WBCs ?
Most abundant mineral of animal body is
Monocot stem lacks
Molecules of a noble gas do not possess vibrational energy because a noble gas _________
Micronutrients are needed in amounts equivalent to
Methyl acetate will be obtained by reacting $ C{{H}_{3}}OH $ with
Medullary rays are made up of
Marasmus is caused by the deficiency of
In the following sequence of reactions, the alkene gives the compound $B. B$ is $CH _{3}- CH = CH - CH _{3} \xrightarrow{ O _{3}} A \xrightarrow{ H _{2} O / Zn }B$
Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so obtained is diazotised and then heated with cuprous bromide. The reaction mixture so formed contains
Which of the following amines gives carbylamine reaction?