Question # 1

Potency and turn over are terms related to:

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enzymes

proteins

fats

oils

Which of the following does not obey general formulas of monosaccharide

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Mannose

Fructose

Glucose

Deoxyribose

Considering the physical properties of the gases, which of the following statements about particles of gas is not true. The particles

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orderly arranged

randomly moving

having wide spaces

causing pressure

The boiling point of H2O is 100°C while that of C2H5-OH is 78.5C°. The reason is that:

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H2O molecules are small-sized

the bond angles at oxygen atom are different

C2H5-group is electron donating

the number of H-bonds are greater in H20, than C2H5-OH

Higher the surface area available for reaction

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slower the reaction

faster the reaction

constant the reaction

lower the Ea

The elements like calcium nitrogen and phosphorus added into the soil in large amounts are called:

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basic elements

trace elements

additives

nutrient element

Half of the mass of atmosphere is concentrated above earth at the hieght of

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40 Km

25-28 Km

5-6 Km

100 Km

The molecular mass of a polymer is obtained by multiplying mass of the monomer unit with the degree of polymerization, The degree of polymerization of PVC is 1000.What is molecular mass?

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65000

63000

62000

60000

During incineration temperature range of non-rotating chamber is

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900-1000C°

650-1100C°

950-1300C°

700-900C°

The substance added to the soil to provide one or more nutrient elements which are necessary plant growth are known as:

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Harmones

minerals

fertilizers

none of above

Equal volume of all gases at same temperature and pressure contain number of molecules

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different

multiples

equal

in fractions

In CCL4 solvent I3 shows:

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Blue Color

Brown Color

Purple Color

Pink Color

Law of mass action was given by :

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Guldberg and Waage.

Berkeley and Hartly.

Ramsay and Reyleigh.

Berthelot.

Addition of iron fillings to CuSO₄solution caused precipitation of Cu owing to the

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Reduction of Cu²⁺

Oxidation of Cu²⁺

Reduction of Fe

Reduction of Fe³⁺

Mustard gas is a

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Gas

High boiling speed

High melting liquid

Steam

The next homologue of C₁₀H₂₂will be

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C₉H₂₀

C₁₂H₂₆

C₁₁H₂₄

C₁₃H₂₈

NaHCO₃is commonly called

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Soda ash

Baking soda

Washing soda

None of these

Scientific study of fermentation was first made by

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Buchner

Liebig

Biot

Pasteur

Which is the formula of tetra-ammine chloronitro platinum (VI) sulphate?

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[Pt(NH₃)₄(NO₂)]SO₄

[PtNO₂Cl(NH₃)₄]SO₄

[PtCl(NO₂)(NH₃)₄]SO₄

[Pt(NH₃)₄(NO₂)Cl]SO₄

Substitution of halogen in the benzene ring requires catalyst

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AlCl₃

FeCl₃

SiO₂

Organo - nickel

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Initial concentration of acetic acid

Initial concentration of ethyl acetate

Equilibrium concentration of acetic acid

Equilibrium concentration of ethyl acetate

The heat energy change during a chemical reaction at constant pressure and at a given temperature is called

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Change in internal energy

Enthaply change

Temperature change

Work done by the system

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