Question # 1

^{The common oxidation number of halogens is}

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-1

+1

-2

0

Which of the following alkyl halides shows higher reactivity?

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R __ F

R __ CI

R __ Br

R __ I

Which of the following is not a category of proteins based upon their function?

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genetic

Regulatory

nucleo

structural

All the following have crystals except:

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potassium bromide

diamond

cadmium sulphide

sodium chloride

Ozone acts as:

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Pollutant

saver

oxidatant

All of these

Soap is formed when triglyceride reacts with

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Caustic soda

Soda lime

Lime

Caustic potash

Which of the following is an example of body centred cube?

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Magnesium

Zinc

Copper

Sodium

Which one among the following is not a natural polymer?

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protein

cellulose

nylon

nucleic acid

Potency and turn over are terms related to:

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enzymes

proteins

fats

oils

NH₃shows a maximum boiling point among the hydrides of Vth group elements due to

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very small size of nitrogen

hydrogen bonding between its molecules

enhanced electronegative character of nitrogen

pyramidal structure of NH₃

Plastic toys are

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Copolymer

Thermoplastic polymer

Thermosetting polymer

Homopolymer

The development of disagreeable odur in fats or oil is called

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Fragrance

Perfume

Rancidity

Smell

When the 6d orbital is completed the entering electron goes into

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7f

7 s

7 p

7 d

An alkane is produced when an alkyle halide reacts with zinc in the presence of

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HCl

CH₃COOH

Both a & b

None

Aldehydes is distinguished from ketones by using

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Tollen's reagent

Benedict reagent

Fehling solution

All of the above

Alkali metals react violently with halogens to form

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Hydrides

Halides

Anyhydrides

None of these

Which one of following is not monocyclic aromatic hydrocarbon

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Benzaldehyde

Benzoic acid

Benzene sulfonic acid

Biphenyl

Which of the following is complex?

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CaSO₄. 0.5H₂O

(C₆H₁₀O₅)_n

C₆H₁₂O₆

CH₄

Which of the following factors does not influenced the rate of reaction

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Concentration of the reaction

Nature of the reactants

Molecularity of the reaction

Temperature

In a compound an atom has negative oxidation state because

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Atom is negatively charged

Atom acts as cathode

Atom is more electronegative

Atom has lowest ionization energy

For which system does the equilibrium constant, KC has units of concentration

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Potassium hexacyanoferrate (II) has the formula

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K₄[Fe(CN)₆]

K₃[Fe(CN)₆]

K₂[Fe(CN)₆]

K [Fe(CN)₆]

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