R4RIN – MCQs, Mock Tests | Chemistry Chemistry MCQ Questions Set-3

Which of the following is not a compound?

1. Brass
2. Quick lime
3. Marble
4. Soda ash

✅ Correct Answer: 1

Species containing same number of electrons are called

1. Isotopes
2. Isobars
3. Isoelectronic
4. Isotones

✅ Correct Answer: 3

Which bond has the greatest ionic character?

1. H-F
2. H-Cl
3. H-N
4. H-O

✅ Correct Answer: 1

Van der Waals equation explains the behaviour of _____

1. Ideal gases
2. Real gases
3. Mixture of gases
4. Diatomic gases

✅ Correct Answer: 2

Which of the following is called the King of Chemicals ?

1. Nitric acid
2. Hydrochloric acid
3. Silver nitrate
4. Sulphuric acid

✅ Correct Answer: 4

TEL minimise the knocking effect when mixed with petrol it acts as_______

1. Positive catalyst
2. Negative catalyst
3. Auto catalyst
4. Induced catalyst

✅ Correct Answer: 2

Curdling of milk is an example of

1. Inversion
2. Denaturation
3. Hydrolysis
4. Coagulation

✅ Correct Answer: 4

Which one of the following is an element?

1. Topaz
2. Rruby
3. Diamond
4. Sapphire

✅ Correct Answer: 3

Which of the following acts both as oxidising and reducing agent?

1. nitric acid
2. ammonia
3. nitrous acid
4. nitrogen peroxide

✅ Correct Answer: 3

Which metal pollute the air of a big city?

1. Chromium
2. Lead
3. Copper
4. Zinc

✅ Correct Answer: 2

Is SiCl4 polar or nonpolar?

1. Polar
2. non polar
3. Both A & B
4. None of the above

✅ Correct Answer: 2

An electrically charged atom or group of atoms is called

1. An ion
2. A meson
3. A electron
4. None of the above

✅ Correct Answer: 1

In nuclear reactor the speed of neutrons is slowed down by

1. heavy water
2. ordinary water
3. Zinc rods
4. molten caustic soda

✅ Correct Answer: 1

Which of the following is a regenerated fibre?

1. Terylene
2. Rayon
3. Nylon
4. Silk

✅ Correct Answer: 2

The charge on positron is equal to the charge on

1. proton
2. electron
3. alpha- particle
4. neutron

✅ Correct Answer: 1

Which gas is known as Fuel of Future ?

1. Methane
2. Oxygen
3. Neon
4. Hydrogen

✅ Correct Answer: 4

Which of the following is not a property of water?

1. Low density
2. Low specific heat
3. Low heat of vaporisation
4. All of the above

✅ Correct Answer: 4

Which of the following is a radioactive element

1. Sulphur
2. Polonium
3. Tellurium
4. Selenium

✅ Correct Answer: 2

Which element has similar properties to Beryllium?

1. Manganese
2. Calcium
3. Both A & B
4. Helium

✅ Correct Answer: 2

What is the primary component of natural gas?

1. Nitrogen
2. Ethane
3. Propane
4. Methane

✅ Correct Answer: 4

Modern periodic table is based on atomic number of the elements. The significance of atomic number was proved by the experiment of ________

1. Moseleys work on X-ray spectra
2. Braggs work on X-ray diffraction
3. Mullikens oil drop experiment
4. Discovery of X-ray by Roentgen

✅ Correct Answer: 1

Milk is an example of a

1. Emulsion
2. Solution
3. Gel
4. Suspension

✅ Correct Answer: 1

Cutting and peeling of onion brings tears to the eyes because of the presence of _____ ?

1. Amino acid
2. Sulfur
3. Carbon
4. Fat

✅ Correct Answer: 2

What does one mole of H2O correspond to

1. 16 gms
2. 18 gms
3. 20 gms
4. 22 gms

✅ Correct Answer: 2

What is the gram formula mass of Li2SO4?

1. 101.2487
2. 109.9446
3. 111.2687
4. 106.5871

✅ Correct Answer: 2

The monomer of polythene is

1. ethylene
2. ethyl alcohol
3. vinyl chloride
4. ethanol

✅ Correct Answer: 1

ATP stands for -

1. Adenosine triphosphate
2. Alanine triphosphate
3. Adrenalin triphosphate
4. Asparagine triphosphate

✅ Correct Answer: 1

The maximum number of electrons that can be accommodated in a shell depends on the formula

1. 1n2
2. n2
3. 3n2
4. 2n2

✅ Correct Answer: 2

Blue litmus paper is converted into red in solution of _______

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

✅ Correct Answer: 1

Permanent hardness of water is due to the presence of ?

1. Calcium sulphate
2. Calcium bicarbonate
3. Sodium bicarbonate
4. Magnesium bicarbonate

✅ Correct Answer: 1

Which sample of matter is a mixture?

1. KBr (S)
2. NaCl (L)
3. K (S)
4. NaCl (Aq)

✅ Correct Answer: 4

Which one of the following is not radioactive

1. Astanine
2. Francium
3. Tritium
4. Zirconium

✅ Correct Answer: 4

A device used for the measurement of radioactivity is

1. mass spectrometer
2. cyclotron
3. nuclear reactor
4. G.M.counter

✅ Correct Answer: 4

Gold and silver are extracted from their respective ores by _______

1. Smelting
2. Roasting
3. Leaching
4. Hydro metallurgy

✅ Correct Answer: 4

Which of the following statement(s) is/are CORRECT? I. Acids are sour in taste and generate H+ ions. II. Acids are sour in taste and generate OH– ions. III. Bases are bitter intaste and generate OH– ions.

1. Only I and III
2. Only I and II
3. Only II and III
4. All I II and III

✅ Correct Answer: 1

Which compound contains both ionic and covalent bonds?

1. NaNO3
2. CaSO4
3. NH4Cl
4. All of the above

✅ Correct Answer: 4

Which of the following does not contain the material particles

1. alpha - rays
2. beta - rays
3. gamma - rays
4. anode rays

✅ Correct Answer: 3

Formation of cation occurs by

1. gain of electron
2. loss of electron
3. gain of proton
4. loss of proton

✅ Correct Answer: 2

Systematic name for (CuI)s ?

1. Copper Iodide
2. Cobalt Fluoride
3. Ferrous Oxide
4. All of the above

✅ Correct Answer: 1

Of the following elements which one has the same oxidation state in all of its compounds?

1. Hydrogen
2. Fluroine
3. Carbon
4. oxygen

✅ Correct Answer: 2

Gammaxene D.D.T. & Bleaching powder are important compounds of

1. Nitrogen
2. Phosphorus
3. Chlorine
4. Sulphur

✅ Correct Answer: 3

A particle which is similar to electron is

1. positron
2. beta particle
3. photon
4. mason

✅ Correct Answer: 2

Which of the following processes is used to remove reducible oxides from the metal?

1. liquation
2. cupellation
3. poling
4. electro refining

✅ Correct Answer: 3

The magnetic moment (spin only) of [NiCl4]2?is

1. 1.41 BM
2. 1.82 BM
3. 5.46 BM
4. 2.82 BM

✅ Correct Answer: 4

In photography the compound of nitrogen used is

1. Potassium nitrate
2. Silver nitrate
3. Ammonium carbonate
4. Ammonium bicarbonate

✅ Correct Answer: 2

Choose the pure substance from the list below.

1. Sugar
2. Lemonade
3. Air
4. Sea water

✅ Correct Answer: 1

Which compound forms a colored aqueous solution?

1. CrCl3
2. KBr
3. CaCl2
4. NaOH

✅ Correct Answer: 1

Natural radioactivity was discovered by

1. Rutherford
2. Becquerel
3. Curie
4. Schmidt

✅ Correct Answer: 2

Which of the following is the strongest base?

1. LiCH3
2. LiF
3. LiOH
4. LiNH2

✅ Correct Answer: 1