VK Jaiswal Inorganic Chemistry JEE

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VK Jaiswal Inorganic Chemistry JEE Objective for Students

Which of the following is not correct about carbon monoxide?

(A) It is produced due to incomplete combustion

(B) It forms carboxyhemoglobin

(C) It reduces the oxygen-carrying ability of blood

(D) The carboxyhemoglobin (hemoglobin bound to CO) is less stable than oxyhemoglobin.

Option d – The carboxyhemoglobin (hemoglobin bound to CO) is less stable than oxyhemoglobin

Which one of the following has the maximum number of atoms?

(A) 1g of Li(s) [Atomic mass of Li = 7]

(B) 1g of Ag(s) [Atomic mass of Ag = 108]

(C) 1g of Mg(s) [Atomic mass of Mg = 24]

(D) 1g of O2(g) [Atomic mass of O = 16]

Option a – 1g of Li(s) [Atomic mass of Li = 7]

Which of the following is a basic amino acid?

(A) Lysine

(B) Serine

(C) Alanine

(D) Tyrosine

Option a – Lysine

The following metal ion activates many enzymes, participates in the oxidation of glucose to produce ATP, and with Na, is responsible for the transmission of nerve signals.

(A) Potassium

(B) Iron

(C) Copper

(D) Calcium

Option a – Potassium

Measuring Zeta potential is useful in determining which property of a colloidal solution.

(A) Size of the colloidal particles

(B) Viscosity

(C) Solubility

(D) Stability of the colloidal particles

Option d – Stability of the colloidal particles

An increase in the concentration of the reactants of a reaction leads to a change in:

(A) collision frequency

(B) activation energy

(C) heat of reaction

(D) threshold energy

Option a – collision frequency

The synthesis of alkyl fluorides is best accomplished by:

(A) Finkelstein reaction

(B) Swart’s reaction

(C) Sandmeyer’s reaction

(D) Free radical fluorination

Option b – Swart’s reaction

Which of the following is not formed when a mixture of methyl bromide and bromobenzene is heated with sodium metal in the presence of dry ether?

(A) Ethane

(B) Propane

(C) Toluene

(D) Diphenyl

Option b – Propane

Electrons in the valence shell of the carbanion are:

(A) 6

(B) 10

(C) 8

(D) 5

Option c – 8

How many chiral stereoisomers can be drawn for 2-Bromo-3-chlorobutane?

(A) 2

(B) 3

(C) 4

(D) 5

Option c – 4

The major product of the reaction between ter butyl chloride and sodium ethoxide is:

(A) 2-Methyl prop-1-ene

(B) 1-Butene

(C) 2-Butene

(D) n-Butyl chloride

Option a – 2-Methyl prop-1-ene

Which of the following reactions will not result in the formation of carbon-carbon bonds?

(A) Friedel-Crafts acylation

(B) Reimer-Tieman reaction

(C) Cannizaro reaction

(D) Wurtz reaction

Option c – Cannizaro reaction

When glycerol is treated with excess of HI, it produces:

(A) Allyl iodide

(B) Propene

(C) Glycerol triiodide

(D) 2-iodopropane

Option d – 2-iodopropane

The heating of phenyl-methyl ethers with HI produces:

(A) Iodobenzene

(B) Phenol

(C) Benzene

(D) Ethyl chlorides

Option b – Phenol

The best reagent to convert pent-3-en-2-ol into pent-3-in-2-one is:

(A) Acidic dichromate

(B) Acidic permanganate

(C) Pyridinium chloro-chromate

(D) Chromic anhydride in glacial acetic acid

Option d – Chromic anhydride in glacial acetic acid

Phenyl magnesium bromide reacts with methanol to give:

(A) A mixture of benzene and Mg(OMe)Br

(B) A mixture of toluene and Mg(OH)Br

(C) A mixture of phenol and Mg(Me)Br

(D) A mixture of anisole and Mg(OH)Br

Option a – A mixture of benzene and Mg(OMe)Br

Ethyl alcohol is less acidic than phenol because:

(A) The phenoxide ion is more resonance stabilized than phenol

(B) There is more hydrogen bonding in phenol than in ethyl alcohol

(C) The ethoxide ion is less resonance stabilized than ethyl alcohol

(D) Phenol has a higher b.p. than ethyl alcohol

Option a – The phenoxide ion is more resonance stabilized than phenol

Which of the following pairs can be distinguished by iodine and dilute NaOH:

(A) N-propyl alcohol and n-butyl alcohol

(B) t-Butyl alcohol and s-butyl alcohol

(C) Benzyl alcohol and cyclohexanol

(D) n-Propyl alcohol and ethyl methyl ether

Option b – t-Butyl alcohol and s-butyl alcohol

The order of reactivity of methyl alcohol (I), isopropyl alcohol (II) tertiary butyl alcohol (III), and ethyl alcohol (IV) for esterification in decreasing order will be:

(A) I > II > III > IV

(B) IV > III > II > I

(C) I > IV > II > III

(D) I > IV > III > II

Option c – I > IV > II > III

The reactivity of alcohols with HCl is in the order of:

(A) Tert butyl alcohol > sec. butyl alcohol > primary butyl alcohol

(B) Primary butyl alcohol > sec. butyl alcohol > tert butyl alcohol

(C) Sec. butyl alcohol > tert butyl alcohol > primary butyl alcohol

(D) Sec. butyl alcohol > primary butyl alcohol > tert butyl alcohol

Option a – Tert butyl alcohol > sec. butyl alcohol > primary butyl alcohol

The correct order of boiling points of n-pentane, butyraldehyde, diethyl ether and n-butyl alcohol is:

(A) n-Pentane > butyraldehyde > diethyl ether > n-butyl alcohol

(B) n-Pentane > diethyl ether > butyraldehyde > n-butyl alcohol

(C) n-Butyl alcohol > butyraldehyde > n-pentane > diethyl ether

(D) n-Butyl alcohol > diethyl ether > n-pentane > butyraldehyde

Option c – n-Butyl alcohol > butyraldehyde > n-pentane > diethyl ether

Methylethylketone can be obtained by the oxidation of:

(A) 2-Butanol

(B) 2-Propanol

(C) 1-Butanol

(D) Tert.butyl alcohol

Option a – 2-Butanol

Which of the following is the odd one out?

(A) Potassium ferrocyanide

(B) Ferrous ammonium sulfate

(C) Potassium ferricyanide

(D) Tetrammine copper (II) sulfate

Option b – Ferrous ammonium sulfate

When 0.1 mol, CoCl3 (NH3)5 is treated with an excess of AgNO3, 0.2 mol of AgCl are obtained the conductivity of the solution will correspond to :

(A) 1.3 electrolyte

(B) 1.2 electrolyte

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(C) 1.1 electrolyte

(D) 3.1 electrolyte

Option b – 1.2 electrolyte

A Chelating agent has two or more two donor atoms to bind to a single metal ion. Which of the following is not a chelating agent?

(A) Thiosulhate

(B) Oxalato

(C) Glycinato

(D) Ethane-1,2-diamine

Option a – Thiosulhate

According to Lewis’s theory, ligands are

(A) Acidic in nature

(B) Basic in nature

(C) Neither acidic nor basic

(D) Some are acidic some are basic

Option b – Basic in nature

The coordination number of central metal atoms in a complex is determined by

(A) The number of ligands around the metal bonded by sigma and Pi bonds

(B) The number around the metal ion bonded! by Pi- bonds

(C) The number of ligands around a metal ion bonded by sigma bonds

(D) The number of only anionic ligands

Option c – The number of ligands around a metal ion bonded by sigma bonds

In the extraction of which of the following a complex ion is formed?

(A) Cu

(B) Ag

(C) Fe

(D) Na

Option b – Ag

Potassium ferrocyanide is an

(A) Normal salt

(B) Double salt

(C) Mixed salt

(D) Complex salt

Option d – Complex salt

The ion or molecule which forms a complex compound with a transition metal ion is called

(A) Recipient

(B) Ligand

(C) Coordinate ion

(D) Cation

Option b – Ligand

The primary valency of cobalt in CoCl3.6NH3, CoCl3.5NH3, and CoCl3.4NH3 is respectively

(A) 6, 5, 4

(B) 3, 2, 1

(C) 0, 1, 2

(D) 3, 3, 3

Option b – 3, 2, 1

Which is not a colligative property?

(A) Lowering in B.P.

(B) Osmotic pressure

(C) Elevation in B.P.

(D) Freezing point

Option d – Freezing point

The osmotic pressure of a 0.6% (w/v) solution of urea is 300 mm at 298 K. The osmotic pressure of a 0.2 M cane sugar solution at the same temperature is

(A) 150 mm

(B) 600 mm

(C) 30 mm

(D) 300 mm

Option a – 150 mm

The vapour pressure of the sucrose solution decreased by the addition of 68.4 of sucrose in 100 g pure water (V.P. of pure solvent is 23.8 mm Hg)

(A) 22.943 mm

(B) 23.948 mm

(C) 20.943 mm

(D) 21.948 mm

Option a – 22.943 mm

During osmosis, the flow of solvent through the semipermeable membrane is from

(A) Solution of higher concentration only

(B) Both solution and solvent side with equal rate.

(C) Both sides through a membrane with an unequal rate

(D) Solution of lower concentration only.

Option d – Solution of lower concentration only

5.25% of the substance solution is isotonic with 1.5% urea solution in the same solvent. The molar mass of a substance

(A) 90 g

(B) 115 g

(C) 210 g

(D) 105 g

Option c – 210 g

Colligative properties are used for the determination of

(A) Molar mass

(B) Equivalent mass

(C) M. P. and B.P.

(D) Arrangement of molecules

Option a – Molar mass

0.5 g of nonvolatile solute with a molar mass of 65 is dissolved in 500 ml of CCl4. The vapour pressure of the solution is (V.P. of CCl4 is 143 mm at 25°C, d = 1.58 g/cm³)

(A) 141.93 mm

(B) 99.39 mm

(C) 199.34 mm

(D) 143.99 mm

Option a – 141.93 mm

The vapour pressure of water at 20°C is 17.5 mm. If 18 g of glucose dissolved in 178.2 g of water. The vapour pressure of the solution becomes

(A) 16.500 mm

(B) 15.750 mm

(C) 16.675 mm

(D) 17.325 mm

Option d – 17.325 mm

A mixture of ethyl alcohol and propyl alcohol has a vapour pressure of 290 mm at 27°C. The V.P. of propyl alcohol is 200 mm. If the mole fraction of ethyl alcohol is 0.60. Its vapour pressure at the same temperature is

(A) 350 mm

(B) 360 mm

(C) 700 mm

(D) 300 mm

Option a – 350 mm

The maximum vapour pressure at 27°C is for

(A) 1 M sugar

(B) 1 M acetic acid

(C) 1 M CaCl₂

(D) 1 M NaCl

Option a – 1 M sugar

Addition of a non-volatile solute in the solvent, the vapour pressure of the solvent decreases from 50 mm to 45 mm at 303 K. The mole fraction of solute is

(A) 0.010

(B) 0.100

(C) 0.005

(D) 0.900

Option b – 0.100

The vapour pressure of pentane and hexane are 440 mm and 120 mm respectively. If their mole ratio is 1 : 4. The mole fraction of pentane in the vapour phase is

(A) 0.549

(B) 0.478

(C) 0.787

(D) 0.200

Option b – 0.478

Approximately, how many different chemical elements exist on the Earth?

(A) 300

(B) 250

(C) 200

(D) 100

Option d – 100

Which of the following is a fundamental element?

(A) Sand

(B) Diamond

(C) Marble

(D) Sugar

Option b – Diamond

The chemical composition of a diamond is

(A) Carbon

(B) Nitrogen

(C) Nickel

(D) Zinc

Option a – Carbon

Assertion (A): In the periodic table of chemical elements, electron affinity is always found to increase from top to bottom in a group. Reason (R): In a group, the atomic radii generally increase from top to bottom.

(A) Both (A) and (R) are true and (R) is the correct explanation of (A)

(B) Both (A) and (R) are true, but (R) is not the correct explanation of (A)

(C) (A) is true, but (R) is false

(D) (A) is false, but (R) is true

Option d – (A) is false, but (R) is true

Consider the following statements with reference to the periodic table of chemical elements. 1. Ionization potential gradually decreases over a period. 2. In a group of elements, electron affinity decreases as the atomic weight increases. In a given period, electronegativity decreases as the atomic number increases. Which of these statement(s) is/are correct?

(A) Only 1

(B) Only 2

(C) Only 1 and 3

(D) Only 2 and 3

Option b – Only 2

What is the usual property of oxides of Group III and IV?

(A) Basic and acidic

(B) Basic

(C) Acidic

(D) Neutral

Option a – Basic and acidic

The element found maximum in the soil layer is

(A) Oxygen

(B) Nitrogen

(C) Manganese

(D) Silicon

Option a – Oxygen

Which one of the following is present in the largest amount in terms of percent by mass in the Earth’s crust?

(A) Silicon

(B) Oxygen

(C) Carbon

(D) Calcium

Option b – Oxygen

Which is the most abundant element after oxygen?

(A) Silicon

(B) Carbon

(C) Sodium

(D) Chlorine

Option a – Silicon

Which of the following is the most common element in the Universe?

(A) Hydrogen

(B) Oxygen

(C) Nitrogen

(D) Carbon

Option a – Hydrogen

Temperature to which simple pottery is subjected to :

1. 1100°C

2. 1450 1800°C

3. 600 – 900°C

4. 150-600°C

Option 1 – 1100°C

Terracotta articles are

1. Glazed

2. Porous

3. Hard

4. Soft

Option 2 – Porous

Simple pottery ware made from

1. Common clay

2. Red clay

3. Black clay

4. None of these

Option 1 – Common clay

Give an example for simple pottery articles

1. Pots

2. Jugs

3. Common bricks

4. All of these

Option 4 – All of these

Earthenware articles are made from

1. Common clays

2. Red clays

3. Black clays

4. Brown clays

Option 2 – Red clays

Temperature to which Earthenware is subjected to :

1. 1100°C

2. 1450-1800°C

3. 600-900°C

4. 150°-650°C

Option 2 – 1450-1800°C

Oxide of which metal can be found in glazed ceramics?

1. pb

2. pd

3. Ni

4. Mn

Option 1 – pb

Which of the following are not earthenware articles?

1. pots

2. common bricks

3. tiles

4. spark plugs

Option 4 – spark plugs

Plastic contain

1. Polymeric organic material

2. Polymeric inorganic material

3. Soda ash

4. Metal oxides

Option 1 – Polymeric organic material

Polymeric organic substance is commonly known as

1. Resin

2. Rexine

3. Ceramic

4. None of these

Option 1 – Resin

An example for a addition polymer is

1. Polythene

2. Poly acrylonitrile

3. Polyvinyl chloride

4. All the above

Option 4 – All the above

Polypeptides are formed by

1. Oxidation reaction

2. Reduction Reaction

3. Additional Polymerization

4. Condensation polymerization

Option 4 – Condensation polymerization

Polythene is used to make

1. carry bags

2. combs

3. pipes

4. films

Option 1 – carry bags

Polystyrene is used to make

1. Milk cartons

2. TV lining

3. Hand bags

4. Recording tapes

Option 2 – TV lining

Polyvinyl Chloride is used to make

1. brushes

2. films

3. carpets

4. pipes

Option 4 – pipes

Polyesters are used to make

1. Rain coats

2. Containers

3. Films

4. Gramophone records

Option 3 – Films

Nylon 6,6 is used to make

1. Brushes

2. Floor coverings

3. Toys

4. Electrical insulators

Option 1 – Brushes

Material used in carry bags

1. Polyesters

2. Nylon 6,6

3. Low density polyethylene

4. High density polyethylene

Option 3 – Low density polyethylene

Material used in containers

1. Low density polyethylene

2. High density polyethylene

3. Polystyrene

4. Polyvinyl chloride

Option 2 – High density polyethylene

Animal glue made from

1. Bones of animals

2. Brain of animals

3. Liver of animals

4. Blood of animals

Option 1 – Bones of animals

The raw slurry or raw meal is called

1. Gangue

2. Raw material

3. Charge

4. None of these

Option 3 – Charge

The rotary kiln consists

1. Steel cylinder

2. Screw conveyer

3. Burner

4. Coal

Option 1 – Steel cylinder

The length of cylinder in kiln is

1. 150 metres

2. 50 metres

3. 100 metres

4. 75 metres

Option 1 – 150 metres

The diameter of steel cylinder in rotary kiln is

1. 2 metres

2. 3 metres

3. 4 metres

4. 5 metres

Option 3 – 4 metres

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