86.Given below are two statements, labelled as Assertion (A) and Reason (R). In the context of the two statements, which of the following is correct ?Assertion (A) : Weightlessness means zero gravity.Reason (R) : Zero gravity can be attained if the gravitational force of the earth is balanced by centrifugal force.

87.Given below are two statements, labelled as Assertion (A) and Reason (R). In the context of the two statements, which of the following is correct ?Assertion (A) : In the case of NaCl, the equivalent conductance is directly proportional to the under root of its concentration.Reason (R) : Sodium chloride is completely ionised in aqueous medium.

88.Money Bill can be introduced in

89.The Kaulinya system was introduced in Bengal by

90.Given below are two statements, labelled as Assertion (A) and Reason (R). In the context of the two statements, which of the following is correct ?Assertion (A) : Ventilators are provided near the roof.Reason (R) : Conduction takes place better near the roof.