Question # 1

Which of the following species is used to formation of glycerol fatty acid from triglyceride

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NaOH

Ni

Lipase

All

Which one of the following is a water soluble vitamin?

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niacin

rioflavin

trypsin

ascorobic acid

Which one is correct about conjugate acid-base concept?

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Conjugate base of a very weak acid is relatively very strong

Conjugate base of a very weak acid is relatively very weak

Conjugate base of a very strong acid is relatively very weak

Both A and C

Surface and ground water sources are contaminate by various human activity. which of the following is not a human activity that causes contamination in fresh water?

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rain

live stock waste

oil leaks and spills

disposal of industrial effluents

Surfactants are organic compounds used in detergents which reduce the:

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viscosity of water

surface tension of water

boiling points of water

surface ability of water

Which if the following will have the same number of molecules at S.T.P?

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280cm³ of CO₂ and 280cm³ of N₂O

11.2dm³ of O₂and 32g of O₂

44g of CO₂and 11.2dm³ of CO

28g of N₂and 5.6dm³ of oxygen

Which of these polymers is a synthetic polymer

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Starch

Animal fat

Polyester in an addition polymer

Cellulose

Formamide is formed by the reaction of which acid with ammonia

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Oualic acid

Formic acid

Ethanoic acid

Propanoic acid

Alpha helix and beta pleated sheath are secondary structures of protein which are maintained by

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dipole forces

non-polar interactions

ionic bonds

Hydrogen bonds

A graph between P and PV constant temperature and number of moles is parallel to:

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Y-axis

X-axis

Z-axis

Pressure axis

Gases are good conductor of electricity at

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Low temperature

Low pressure

High pressure

Low temperature and high pressure

Hydrolysis of sucrose is called

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Inhibition

Saponification

Inversion

Hydration

______ is called milk of magnesia

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NaOH

KOH

LiOH

None

Write the name of following compound

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5 - methyle - 2- hexene

2 - methyle hexene

4 - ethyle - 2 - methyle hexene

3 - ethyle - 3 - methyl hexene

Which one of the following is not a nucleophile

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H₂O

H₂S

BF₃

NH₃

Which statement is correct for the fuel cells

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These cells operate at low temperature

No catalyst used for the formation of water

MnO₂is used as electrolyte

Series starting from57La,42Hf -80Hg is in the period:

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4th

5th

6th

7th

Which one is the major reason for pollution in high cities?

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Fossil fuel

Acid rain

Heat dispersion

None of the above

The four bonds of carbon in methane are directed towards the corners of

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Cube

Pentagon

Hexagon

Tetrahedron

Which of the following is an inert gas?

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H₂

O₂

N₂

Argon

The nature of positive rays depend on:

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Nature of discharge tube.

Nature of resident gas.

Nature of electrode.

All of above.

In the reaction of oxalic acid with KMnO₄and H₂SO₄is slow at the beginning but after sometimes the reaction becomes faster due to

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Formation of MnSO₄which acts as 'Auto catalyst

Formation of CO₂which acts as 'Auto catalyst

Formation of K₂SO₄which acts as 'Auto catalyst

Evolution of O₂gas which acts as 'Auto catalyst

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