R4RIN – MCQs, Mock Tests | Chemistry G.K Question and Answer

An electrically neutral group of two or more atoms chemically bonded together is called:

1. Molecule
2. Ion
3. Element
4. Compound

✅ Correct Answer: 1

A positively and negatively charged atom or group of atoms is called:

1. Nucleus
2. Ion
3. Compound
4. Molecule

✅ Correct Answer: 2

A negatively charged particle found in the atoms of all elements is called:

1. Proton
2. Electron
3. Neutron
4. Ion

✅ Correct Answer: 2

A positively charged particle found in the atoms of all elements is called:

1. Ion
2. Electron
3. Proton
4. Neutron

✅ Correct Answer: 3

A neutral particle found in the nucleus of an atom is called:

1. Electron
2. Nucleus
3. Proton
4. Neutron

✅ Correct Answer: 4

A small positively charged part at the centre of an atom is called:

1. Nucleus
2. Neutron
3. Electron
4. Proton

✅ Correct Answer: 1

Atoms of the same element having the same atomic number but different mass number are called:

1. Radioactive isotopes
2. Isobars
3. Valence Electrons
4. Isotopes

✅ Correct Answer: 4

Those reactions in which two or more substances combine to form a single substance is called:

1. Combination reaction
2. Displacement reaction
3. Decomposition reaction
4. Double displacement reaction

✅ Correct Answer: 1

Those chemical substances which have a sour taste are:

1. Salt
2. Acid
3. Bases
4. None of the above

✅ Correct Answer: 2

Those chemical substances which have a bitter taste are:

1. Acid
2. Bases
3. Salt
4. Concentrated Acids

✅ Correct Answer: 2

The scale on which the strength of acid solutions as well as basic solutions could be represented by making use of hydrogen ion concentrations in them is called:

1. Balance scale
2. Platform scale
3. Pan scale
4. Pan scale

✅ Correct Answer: 4

A compound formed from an acid by the replacement of the hydrogen in the acid by a metal is called:

1. Base
2. Salt
3. Concentrated Acid
4. Alkali

✅ Correct Answer: 2

What is the chemical bond formed by the transfer of electrons from one atom to another is called?

1. Single covalent bond
2. Ionic bond
3. Double covalent bond
4. Triple covalent bond

✅ Correct Answer: 2

The chemical bond formed by the sharing of electrons between two atoms is known as:

1. Ionic bond
2. Ionic bond
3. Covalent bond
4. Single covalent bond

✅ Correct Answer: 3

What is a homogeneous mixture of two or more metals called?

1. Salt
2. Alloy
3. Alkali
4. Acid

✅ Correct Answer: 2

What is an unsaturated hydrocarbon in which the two carbon atoms are connected by a double bond called?

1. Alkanes
2. Alkenes
3. Alkynes
4. Ionic bond

✅ Correct Answer: 2

An unsaturated hydrocarbon in which two carbon atoms are connected by a triple bond is called:

1. Alkynes
2. Haloalkanes
3. Alkenes
4. Ketones

✅ Correct Answer: 1

The organic compounds having the same molecular formula but different structures are called:

1. Atoms
2. Isomers
3. Homologous series
4. Haloalkanes

✅ Correct Answer: 2

What is the part of the solution that dissolves the solute called?

1. Solvent
2. Sol
3. Salt
4. None of the above

✅ Correct Answer: 1

Compounds that contain carbon are called:

1. Organic compound
2. Ionic compound
3. Alkynes
4. Molecular compound

✅ Correct Answer: 1

What is the mixing of air into a liquid or solid called?

1. Aeration
2. Aldehyde
3. Actinides
4. Allotropy

✅ Correct Answer: 1

What are the different physical forms in which an element can exist called?

1. Alkane
2. Alloy
3. Amine
4. Allotropes

✅ Correct Answer: 4

The study of heat flow is called:

1. Combustion
2. Calorimetry
3. Diffusion
4. Electrolysis

✅ Correct Answer: 2

What is the process called when a compound combines with oxygen gas to form water, heat and carbon dioxide?

1. Electrolysis
2. Combustion
3. Diffusion
4. Calorimetry

✅ Correct Answer: 2

When a gas moves through an opening into a chamber that contains no pressure, it is called:

1. Effusion
2. Diffusion
3. Combustion
4. Osmosis

✅ Correct Answer: 1

When a substance loses electrons, it is called:

1. Corrosion
2. Rust
3. Oxidation
4. Osmosis

✅ Correct Answer: 3

What is the substance that has an unstable nucleus that can fall apart called?

1. Organic compound
2. Radioactive
3. Nuclear fission
4. Nuclear fusion

✅ Correct Answer: 2

What is the old name of alkenes?

1. Olefins
2. Paraffin
3. Acetylene
4. None of the above

✅ Correct Answer: 1

Which compound is used for making perfumes and dyes?

1. Ethyl
2. Ethyl acetate
3. Ethanoate
4. Ethanone

✅ Correct Answer: 2

In water alkanes are .......... ?

1. Soluble
2. Insoluble
3. Bitter in taste
4. Sweet in taste

✅ Correct Answer: 2

In which hydrocarbon all the four valencies of carbon are linked together with single bond?

1. Alkanes
2. Alkenes
3. Alkynes
4. None of the above

✅ Correct Answer: 1

Aromatic hydrocarbons are also known as ........... ?

1. Acetaldehyde
2. Butyne
3. Arenes
4. Arines

✅ Correct Answer: 3

Name an organic compound in which RCOOCOR is a functional group?

1. Ester
2. Acid anhydride
3. Dimethyl ether
4. Aliphatic hydrocarbon

✅ Correct Answer: 2

Name an open chain hydrocarbon which is odourless?

1. Aldehydes
2. Aromatic
3. Aliphatic
4. Acetate

✅ Correct Answer: 3

Name a hydrocarbon which is a main component of natural gas?

1. Methyl
2. Methane
3. Ethyl
4. Methanol

✅ Correct Answer: 2

Why alkanes are known as saturated hydrocarbon?

1. It consists of triple bond.
2. It consists of double bond.
3. It consists of single bond.
4. None of the above

✅ Correct Answer: 3

What is the general formula of alkenes?

1. CnH2n
2. CnH2n-2
3. CnH2n+2
4. CnH2n+OH

✅ Correct Answer: 1

At present how many elements are known to us?

1. 118
2. 119
3. 120
4. 117

✅ Correct Answer: 1

Which of the following statement is not true about metals?

1. Metals are heavy and produce sound when hit with an object.
2. Mercury metal is solid at room temperature.
3. Metals have high densities.
4. Metals can be converted into thin sheets.

✅ Correct Answer: 2

Which of the following metal can be cut down with the help of knife?

1. Sodium
2. Potassium
3. Gallium
4. All of the above

✅ Correct Answer: 4

Name the property of metal in which it can be drawn into thin wires?

1. Sonorous
2. Ductility
3. Malleability
4. Conductivity

✅ Correct Answer: 2

Why Aluminium is used for making cooking utensils?

1. It is good conductor of heat.
2. It is sonorous
3. It is malleable
4. None of the above.

✅ Correct Answer: 1

Other than mercury which other metal is liquid at room temperature?

1. Sodium
2. Lithium
3. Gallium
4. Caesium

✅ Correct Answer: 3

Name a metal oxide which is acidic and basic in nature?

1. Calcium Oxide
2. Iron Oxide
3. Amphoteric Oxide
4. Sulphur dioxide

✅ Correct Answer: 3

Ringing bells in the temples are made up of:

1. Non-Metals
2. Metalloids
3. Metals
4. None of the above

✅ Correct Answer: 3

Name a metal which is used in making airplanes?

1. Copper
2. Zinc
3. Iron
4. Aluminium

✅ Correct Answer: 4

The atomic number of four elements P, Q, R, S are 6, 8, 10 and 12 respectively. The two elements which can react to form ionic compounds are:

1. P and S
2. Q and R
3. P and R
4. Q and S

✅ Correct Answer: 4

Which of the following statement is true about ionic compounds?

1. Ionic compounds conduct electricity when dissolved in water.
2. Ionic compounds are not soluble in water.
3. Ionic compounds are crystalline solids.
4. Only A and C

✅ Correct Answer: 4

The solution of one of the following compounds will conduct electricity. This compound is:

1. CCl4
2. HCl
3. CaCl2
4. CH3Cl

✅ Correct Answer: 3

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G.K Question and Answer - Chemistry MCQs Set V