List of practice Questions

What bond order does $Li_{2}$ have?
$ C_6H_5 - CH = CHCHO {->[X]} C_6H_5CH = CHCH_2OH$ In the above sequence $X$ can be:
Among $ HF,CH_{4},CH_{3}OH$ and $N_{2}O_{4},$ inter molecular hydrogen bond is expected:
Which of the following acts as an oxidising as well as reducing agent?
What is the oxidation state of $P$ in $ Ba(H_2PO_2)_2 $?
Maximum number of hydrogen bonding in $ {{H}_{2}}O $ is:
Maximum entropy will be in which of the following?
What is obtained when chlorine is passed in boiling toluene and product is hydrolysed?
Oval RBCs are found in
What is located inside a vacuole ?
Pectins can be traced in
Quiescent centre is a region of root apex which is
In Cockroach, conglobate gland can be traced in
Which of the following is syncytial ?
Histogen tissues are classified on the basis of
Meristematic cells are characterised by
Which of the following tissues is phylogenetically least differentiated ?
After $2$ hours $1 / 16$ th of initial amount of a certain radioactive isotope remains undecayed. The half-life of the isotope is :
Sodium phenoxide reacts with $ C{{O}_{2}} $ at $400 \,K$ and $4-7$ atm pressure to give
Saturated solution of $ KN{{O}_{3}} $ is used to make salt bridge because
On passing $3A$ of electricity for $50$ min $1.8\, g$ metal deposits. The equivalent mass of metal is
Which of the following is used widely in the manufacture of lead storage battery?
The general formula $ {{C}_{n}}{{H}_{2n}}{{O}_{2}} $ could be for open chain
A wheel having moment of inertia $2\,kg-m^2$ about its vertical axis, rotates at the rate of $60$ rpm about this axis. The torque which can stop the wheel's rotation in one minute would be
A transparent cube of $15\,cm$ edge contains a small air bubble. Its apparent depth when viewed through one face is $6\,cm$ and when viewed through the opposite face is $4\,cm$. Then, the refractive index of the material of the cube is