List of practice Questions

An electric motor operates on a $50\, V$ supply and a current of $12\, A$. If the efficiency of the motor is $30\%$, what is the resistance of the winding of the motor?

Which one of the following is not present in RNA?

A certain mass of gas occupies a volume of $2$ litre at STP keeping the pressure constant. At what temperature would the gas occupy a volume of $4$ litre?

In the compounds $KMnO_{4}$ and $K_{2}Cr_{2}O_{7},$ the highest oxidation state is of the element:

The substance used as pigment in paint is:

What bond order does $Li_{2}$ have?

Among $ HF,CH_{4},CH_{3}OH$ and $N_{2}O_{4},$ inter molecular hydrogen bond is expected:

$ C_6H_5 - CH = CHCHO {->[X]} C_6H_5CH = CHCH_2OH$ In the above sequence $X$ can be:

Maximum number of hydrogen bonding in $ {{H}_{2}}O $ is:

What is the oxidation state of $P$ in $ Ba(H_2PO_2)_2 $?

Which of the following acts as an oxidising as well as reducing agent?

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

Pectins can be traced in

What is located inside a vacuole ?

In Cockroach, conglobate gland can be traced in

Quiescent centre is a region of root apex which is

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