List of top Chemistry Questions

Pressure versus temperature graph of an ideal gas of equal number of moles of different volumes are plotted as shown in figure. Choose the correct alternative.

Pressure deviation from ideal behaviour takes place because of

Pressure exerted by a perfect gas is equal to

Powdered substances are more effective adsorbents than their crystalline form because

Potassium fluoride $KF$ has $NaCl$ structure. Its density is $248 \,g\, cm^{-3}$ and its molar mass is $58 \,g\, mol^{-1}$. The distance between K+ and F ions in KF is

Potential difference across resting membrane is negatively charged This is due to differential distribution of the following ions

Potassium crystallizes with a

Polyvinyl alcohol can be prepared by

Position of double bond in alkene can be identified by

Polystyrene is an example of

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

Polyacrylonitrile is an example of

Polyblend is

Point out the false statement

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

Point out the incorrect statement

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

Platinum black is

Planar structure is shown by

$pK_a$ of $CH_3COOH$ is 4.74. The pH of 0.01 M $CH_3COONa$ is

Pick out the ideal condition for $H_2SO_4$ manufactured by contact process

Photochemical smog is related to pollution of

Photochemical smog occurs in warm, dry and sunny climate. One of the following is not amongst the components of photochemical smog, identify it.

Phosphorus trioxide reacts with hot water to give