Question # 1

In a saturated solution of AgCl, the molar concentration of Ag+ and Cl- is 1.0x10(-5)M each. What is the value of Ksp

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1.0x10(-5)

1.0x10(-15)

0.1x10(-5)

1.0x10(-10)

Which one of the following groups is indicated when HCI is formed by reaction of ethanol with phosphorous pentachloride?

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Amino group

Halide group

Hydroxyl group

Hydride group

The formation of ester from acetic aciad in presence of acid and ethanol is a

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Nucleophilic substitution reaction

Nucleophilic addition reaction

Electrophilic substituion reaction

Electrophilic addition reaction

The weakest intermolecular forces present in a liquid may be

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Dipole-induced dipole forces

dipole-dipole forces

instantaneous forces

electrostatic forces between ions in a ionic solid

Surface and ground water sources are contaminated by various human activities which of the followings is not a human activity that causes contamination in fresh water

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live stock waste

oil leaks and spills

disposal of industrial effluents

rain

All of the following are hydroxy containing amino acids except

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Serine

Threonine

Valine

Tyrosine

Furan is a compound

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Acyclic

Alicyclic

Heterocyclic

non-aromatic

Which of the following is most found in protein molecule

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Carbon

Hydrogen

Oxygen

Nitrogen

Which of the following is Homopolymer

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Polyvinyl acetate

Acrylic resin

Polyester resins

Both A and C

Which one of the following is not true of metallic bonding?

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it gives rise to excellent electrical conductivity

electrons are following to move throughout the structure

the strength of metallic bonds increases down a group

the strength of metallic bonding affects the boiling point of metals

Nihydrin reacts with amino acid to give product of

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Bluish color

Violet color

Bluish violet color

No color

Camphor is often used in molecular mass determination because

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It is solvent for organic substances

It is readily available

It has a very high cryoscopic constant

It is volatile

The relation between Kc and Kp is

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If a large number of amino acids (hundreds to thousands) are joined by peptide bonds, the resulting product is called

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Dipeptide

Tripeptide

Polypeptide

None of these

Platinum is poisoned by

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Arsenic

Silver

Argon

Zinc

The relative abundance of the ions with a definite m/e value is measured by

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High pressure of vapours

Strength of electric current measured

Quantity of fast moving electrons

Electron gas

Which formula represents the organic compound formed by the reaction of propanoic acid with methanol in the presence of concentrated sulphuric acid as a catalyst

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CH₃CH₂COCH₃

CH₃CH₂CO₂CH₃

CH₃CO₂CH₂CH₃

CH₃CH₂CH₂CO₂CH₃

The test used for the detection of ethanol in the mouth of a drunk driver is that the drunk driver is asked to blow air from mouth into a solution of K₂Cr₂O₇and H₂SO₄. The colour changes, if the driver is drunk

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From orange to green

From pink to green

From orange to colorless

From pink to colorless

Which of the following synthetic fertilizer do not make soil acidic

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Urea

Thin urea

Ammonium phosphate

Potassium nitrate

Which of the following metals is sometimes found in native state in nature?

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Al

Cu

Fe

Mg

Alkaline earth metals are usually

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Reducing agent

Oxidizing agent

Amphoteric

Acidic

The major reaction occurring in the engines of automobiles is

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Oxidation

Reducing

Combustion

Decomposition

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