Question # 1

Which of the following is sulphur highly containing protein

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Collagen

Keratin

Ossein

Reticulin

Plastics are pollution problem because many plastics:

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are made from petroleum

are very inflammable

burn to produce toxic fumes

decompose to produce toxic products

Gram atoms of hydrogen in 5.5 g H2

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5.50

2.25

5.45

2.20

Which of the following contains maximum of number of molecules?

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100 cc of CO₂ at STP

150 cc of N₂at STP

50 cc of SO₂ at STP

200 cc of NH₃ at STP

Liquids are less common than:

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Solids.

Plasmas.

Gases.

All of above.

The energy produced by a carbohydrate is:

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3 kcal/gm

2kcal/gm

6kcal/gm

4kcal/gm

Which of the following is not the application of plasma

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Fluorescent light bulb

Removal of hazardous chemical

Neon signs

Corrosion effective

HOCl is a compound:

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Polor inorganic

organic

Ionic

covalant

A line parallel to x-axis is obtained when graph is drawn between

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Volume on abscissa & pressure on ordinate

Volume on abscissa & PV on ordinate at all conditions

Pressure on abscissa & PV on ordinate at constant temperature

None of these

Phenol is completely soluble in water above

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25°C

62.3℃

68.5°C

66.50°c

Which of the following is basic amino acid

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Lysine

Histidne

Proline

Both a and b

The diameter of atoms is of the order:

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2* 10^-5m

2* 10^-10m

2* 10^-2m

2* 10^-3m

The overlapping of two partially filled atomic orbital is in such a way that the probability of finding the electron pair is maximum along the axis joining the two nuclei, the bond is

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Sigma bond

Pi bond

Ionic bond

Non-polar bond

For every reaction occurring in the body three is at least one type of

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Enzyme

Vitamin

Protein

Amino acid

The total number of possible values of magnetic quantum number for the value of l=3 is

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3

1

5

7

According to the periodic law, the chemical properties of the elements are periodic functions of their

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Density

Atomic number

Atomic mass

Mass number

A peptide having molecular mass upto 10,000 is called a

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Vitamin

Protein

Polypeptide

Dipetide

The other name of cross linked polymers is

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Linear polymer

Branched polymer

Inter connected polymers

None of these

Estimation of Na in sea water is an example of :

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Numerical analysis.

Qualitative analysis.

Quantitative analysis.

None of above.

The addition of unsymmetrical reagent to an unsymmetrical alkene is in accordance with

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Hund's rule

Markownikov's rule

Pauli's Exclusion principle

Auf ban principle

The degree of polarity of molecule is known as its

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Dipole moment

Moment arm

Bond energy

Ionic character

Which one of the followings is a heterocyclic compound

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Cyclohexanol

Phenol

Pyridine

Anthracene

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