Question # 1

The relationship between K_pand K_cis given by

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The deviation of a gas from ideal behavior is maximum at.

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-10 ^oC and 5.0 atm

-10^oC and 2 atm

0^oC and 2 atm

100^oC and 2 atm

Glucose can be converted into ethanol by an enzyme.

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Lipase

Zymase

Sucrose

Urease

Large value of distribution coefficient K means.

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Component of solute dissolved large in mobile phase

Components of solute do not dissolve in mobile phase

Components of solute remains at original spot

All statements are correct

The boiling point of water at Murree Hills.

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90^oC

98^oC

100^oC

120^oC

The largest number of molecule are present.

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3.6 g of H2O

4.6 g of C2H5OH

2.8 g of CO

5.4 g of N2O5

The molecule of CO2 in dry ice form the.

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Ionic crystals

Covalent crystals

Molecular crystals

Any type of crystals

Which of the following precautions in necessary for smooth filtration

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The filter paper should be of big size

The tip of funnel should not touch the side of the beaker

The stem of the funnel should be very small

The stem of he funnel should remain continuously full of liquid

Which one of the following methods will be used to separate the mixture of NaCl and sand.

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Chromatography

Solvent extraction

Sublimation

Filtration

The element nickel has isotopes.

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3

2

5

7

Melting of ice can be forwarded by the use of.

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LiCl

BeCl2

NaCl

Ag Cl

Which statement is incorrect about order of reaction

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It cannot be determined experimentally

It is determined experimentally

Sum of exponents in rate equation

It can have fraction value

NH3 shows a maximum boiling point among the hydrides of the group V elements due to.

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Very small size of nitrogen

Long pair of electrons present on nitrogen

Enhanced electronegative character of nitrogen

Pyramidal structure of NH3

A filtration process could be very time consuming if it were not aided by a gentle suction, which is developed

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If the paper covers the funnel up to its circumference

If the paper has got small sized pores in it

If the stem of the funnel is large so that it dips into the filtrate

If the paper fits tightly

Splitting of spectral lines when atoms are subjected to magnetic field is called.

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Stark effect

Zeeman effect

Photoelectric effect

Compton effect

Rutherford's model of atom failed because

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The atom did not have a nucleus and electrons

It did not account for the attraction between protons and neutrons

It did not account for the stability of the atom

There is actually no space between the nucleus and the electrons

If the electron in a hydrogen atom drops from n = 6 to n =4 level, the radiation emitted is in which series of lines in the spectrum of atomic hydrogen.

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Lyman

Balmer

Paschen

Brackett

Which one of the following statements is incorrect.

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Enzymes are protein in nature

Enzymes are catalyst

Enzymes can catalyze any reaction

Urease is an enzyme

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