Question # 1

The process in which solvent particles surround solute particles is called

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Hydrolysis

Hydration

Solvation

Dissolution

The example of colligative property is

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Boiling point

Osmosis

Freezing point

Osmotic pressure

Vinegar is dilute solution of:

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Acitic acid

Formic acid

Butyric acid

Propionic acid

The de-Brogile wavelength of a particle with mass 1g and velocity 100 m/s is

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6.63 x 10^-33m

6.63 x 10^-34m

6.63 x 10^-35m

6.65 x 10^-35m

Which statement is incorrect for balancing of redox reactions by ion-electron method

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The reaction is splitted into two half reactions

H₂O and H⁺ions are added for acidic or neutral reaction to balance O and H atoms

To balance H, HCi, is added

To balance O and H in the alkaline reaction OH^-added

The active part in a molecule is called

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Hetroatom

Functional group

Chemical bond

Ion

Al³⁺is a symbol for aluminium

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Atom

Ion

Cation

Anion

Methanol and ethanol can be distinguished by

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Iodoform test

Iucas test

Dichromate/H₂SO₄oxidation test

Flame test

Mercury is the only metal which is liquid at 0°C. this is due to its

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Very high ionization energy and weak metallic bond

Low ionization potential

High atomic weight

High vapour pressure

An azeotropic mixture of two liquids boils at a lower temperature than either of them when lower temperature

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It is saturated

it shows positive deviation from Raoult's law

It shows negative deviation form Raoult's law

It is metastable

For a chemical reaction to take place the particles must have sufficient energy for the effective collisions, the energy is called

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Average energy

Activation energy

Potential energy

Collision energy

The freezing mixture used in ice cream machine consists of ice and

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NaCI

KCI

MgCI₂

NaNO₃

A homogeneous mixture of two or more than two chemical substances is called

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Solute

Solution

Solvent

Salvation

Sintered glass is a porous material use for :

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Absorpton

Decoration.

Filtration.

All of above.

Baukelite is a polymer obtained from two monomers

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Phenol and ethanol

Phenol and methanol

Phenol and methanal

Phenol and acetone

With the reference of w/m ratio of anode rays, the e/m ratio of cathode rays s:

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Greater.

same.

Smaller.

Not fixed.

Which of the following has more unpaired d-electrons?

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Zn⁺

Fe²⁺

Ni³⁺

Cu⁺

Which one of the following is a water soluble vitamin

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Niacin

Riboflavin

Tyrosine

Ascorbic acid

The development of industries was a direct result of which major factor

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Population

Living standards

Depletion of resources

All of these

BiCl₃on hydrolysis forms a white precipitate of

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Bismuthio acid

Bismuth oxychloride

Bismuth pentachloride

Bismuth hydroxide

Zeotropic mixture

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Obey Henry's law

Obey Raoult's law

Does not obey Raoult's law

Obey Dalton's law

Isotopes differ in the

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Number of neutrons

Number of protons

Number of electrons

Number of atoms

DDT is

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Biodegradable pollutant

Nondegradable pollutant

Not a pollutant

An antibiotic

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[A] = [B]

[A] < [B]

[B] = [C]

[A] > [B]

Neutrons was discovered by

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Mosely

Milliken

Chadwick

Ruherford

Size of an anion is increased as compared to its atom because of the

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Addition of new shell

Repulsion of electrons in the valence shell

Decrease in nuclear charge

Increase in the unclear charge

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Elimination Esterification

Elimination Isomerisation

Oxidation Exterification

Oxidation Oxidation

Eletronegativity difference in C-C bond in alkanes is:

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Zero

Double

Half

4.0

Essentialα-amino acids are those which are necessary in the diet

Which one is an essentialα-amino acids

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Alanine

Aspartic acid

Glycine

Tryptophan

Potassium chromate has formula

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KClO₃

K₂CO₃

K₂CrO₄

K₂Cr₂O₇

The solid remained on filter paper during the filtration is called the :

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Substance.

Residue.

Undue.

Filtrate.

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