List of practice Questions

Polyvinyl alcohol can be prepared by

Porins occur in

Position of double bond in alkene can be identified by

Polyethylene is obtained from calcium carbide. $CaC_{2} + 2H_{2}O \to Ca(OH)_{2} + C_{2}H_{2}$ $C_{2}H_{2} +H_{2} \to C_{2}H_{4}$ $ nC_{2}H_{4} \to $

Therefore, the amount of polyethylene obtained for $64 \,kg \,CaC_{2}$ is

Polymerisation of propene using Ziegler-Natta catalyst is advantageous over free radical polymerisation because

Polystyrene is an example of

Polyacrylonitrile is an example of

Polyarch vascular bundles generally occur in

Polyblend is

Polycistronic messenger $ RNA (mRNA)$ usually occurs in

Polydactyly is

Points $ P $ , $ Q $ and $ R $ are in a vertical line such that $ PQ = QR $ . A ball at $ P $ is allowed to fall freely. The ratio of times of descent through $ PQ $ and $ QR $ is

'POISE' is the

Pollenkitt is present in pollen grains of

Pollutants released from iron and steel industry are

Point out the correct set of diamagnetic substances

Point out the correct statement about $Zn-CuSO_4$ cel

Point out the false statement

Point out the incorrect statement

Plutonium decays with half life of $24000$ years. If plutonium is stored for $72000$ years, the fraction of it that remains is

pOH of water is 7.0 at 298 K. If water is heated to 350 K, which of the following should be true ?

Plasmogamy takes place in Basidiomycetes by this method

Platinum black is

Plerome produces

Planar structure is shown by