ENTRANCE TEST – 2008 Multiple Questions and Answers.




41.The mobile phase in paper chromatography is usually
A. An organic liquid.
B. Sulphuric acid.
C. Water.
D. Silver nitrate.

42.The amount of heat absorbed by one mole of solid at 1 atm when it melts into liquid form is denoted by __________
A. Δ Hv.
B. Δ Hf.
C. Δ Hi.
D. Δ Hs.

43.In synthetic fibres __________ bonding is responsible for tensile strength.
A. Nitrogen.
B. Hydrogen.
C. Oxygen.
D. None of these

44.Boiling point of HF is __________ H2O.
A. Lower than.
B. Higher than.
C. Equal to.
D. Almost same as.

45.__________ is necessary for development of leaves and it tends to accumulate in leaves and bark.
A. NO2.
B. Calcium.
C. Gypsum.
D. Nitrogen.

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