General Science/General Science Chemistry MCQs Sample Test,Sample questions

Question:
18Ar40 and 20Ca40 are __ of each other?

1.Isomers [B] [C] [D]

2.Isotopes

3.Isobars

4.Isotherms


Question:
An element has an atomic weight of W and an atomic member of N. The number of protons in th nucleus of its atom is?

1.N

2.W

3.N-W

4.N+W


Question:
Atoms can neither be created nor destroyed. This principle was given by __?

1.Avogadro

2.Dalton

3.Rutherford

4.Niels Bohr


Question:
Charles Goodyear is known for which of the following

1.Experiments on Rubber Plants

2.Invention of Radial Tyres

3.Vulcanization of Rubber

4.Invention of Artificial Rubber


Question:
Consider the following differences between Hard water and Soft water:
While hard water has high calcium and magnesium content, soft water has high sodium content
Hard water does not easily lather with soap, whereas soft water easily lather with soap
   Which of the above statements is/are correct?

1.1 Only

2.2 Only

3.Both 1 & 2

4.Neither 1 nor 2


Question:
Consider the following statements about soaps and detergents:
While soaps are sodium salts of fatty acids, detergents are sodium salts of sulphonic acids.
Surface tension of water increases on adding detergents and soaps.
Which of the above statements is/are correct?

1.Only 1

2.Only 2

3.Both 1 & 2

4.Neither 1 nor 2


Question:
Consider the following statements about Zeolites:
Zeolites are a large group of natural and synthetic hydrated aluminium silicates
Zeolites are mainly found in low-temperature metamorphic rocks
  Which of the above statements is/are correct?

1.1 Only

2.2 Only

3.Both 1 & 2

4.Neither 1 nor 2


Question:
In which form is the work done in stretching a wire stored as?

1.Kinetic energy

2.Potential energy

3.Heat energy

4.Electrical energy


Question:
The aqueous solution of which among the following acids is called Vinegar? 

1.Oxalic acid

2.Citric acid

3.Acetic acid

4.Hydrochloric acid


Question:
The exceptionally low melting point of mercury can be explained on the basis of which of the following explanations?Mercury has completely filled-up atomic orbitals
2. In mercury, the binding energy of outer electrons (towards nucleus) is highest and no electron is available to participate in metallic bond formation
Choose the correct option from the codes given below:

1.Only 1 is correct

2.Only 2 is correct

3.Both 1 & 2 are correct

4.Neither 1 nor 2 is correct


Question:
The irritation caused by sting of ants and bees can be neutralized by using soap because sting comprises which of the following acid?

1.Lactic Acid [B] [C] [D]

2.Acetic Acid

3.Formic Acid

4.Malathionic Acid


Question:
What happens to the weight of Iron, when it rusts?

1.Increases for long time

2.Increases then decreases

3.Decreases then increases

4.Remains the same


Question:
What is the 4th state of matter?

1.Bose-Einstein condensates [B] [C] [D]

2.Plasma

3.Gas

4.Liquid


Question:
What is the equilibrium distance for Hydrogen atoms?

1.0.54 Å

2.0.64 Å

3.0.74 Å

4.0.84 Å


Question:
What is the nature of Drinking soda?

1.Alkaline

2.Acidic

3.Neutral

4.Oxidant


Question:
What is the status of total energy at any time during the interconversion of energy from one form to other forms?

1.The total energy remains constant.

2.The total energy remains zero.

3. The total energy remain increasing.

4.The total energy remain decreasing.


Question:
What is the unit of Stress?

1.N/m

2.Kg/m

3.Nm

4.It has no units


Question:
What is the use of iodoform?

1.It helps in reducing fever

2.It is used to induce sleep

3.It is used as an antiseptic for wounds

4.It is used to reduce acidity


Question:
Which among following is also known as white gold?

1. Nickel

2.Rhodium

3.Platinum

4.Palladium


Question:
Which among the following are constituents of Brass?

1.Zinc and Copper

2.Iron and Zinc

3.Copper and Nickel

4.Iron and Copper


Question:
Which among the following chemicals is used in Photography?

1.Silver Bromide

2.Potassium Chloride

3.Sodium Bromide

4.Magnesium Chloride


Question:
Which among the following element is an essential constituent of acids? 

1.Nitrogen

2.Hydrogen

3.Oxygen

4.Helium


Question:
Which among the following element is an essential constituent of acids?

1.Nitrogen

2.Hydrogen

3.Helium

4.Oxygen


Question:
Which among the following elements are generally find in free state?

1.Group 11 elements

2.Group 12 elements

3.Group 13 elements

4.Group 14 elements


Question:
Which among the following happens in an oxidation reaction ?

1.Electrons are gained

2.Electrons are lost

3. Protons are gained

4.Protons are lost


Question:
Which among the following is known as White Vitriol?

1.Zinc Sulphate [B] [C] [D]

2.Zinc Chloride

3.Zinc Phosphate

4.Zinc oxide


Question:
Which among the following is popularly called Hypo?

1.Silver bromide

2.Silver nitrate

3.Sodium thiosulphate

4.Sodium phosphate


Question:
Which among the following methods can be used to remove the permanent hardness in water due to calcium or magnesium sulphates?

1.Sulphonate method

2.Nitrate method

3.Zeolite method

4.None of these


Question:
Which is the main source of Naphthalene?

1.Charcoal

2.Camphor

3.Coal-tar

4.Titanium


Question:
Which metal does not present in the alloy “German Silver”?

1.Nickel [B] [C] [D]

2.Zinc

3.Copper

4.Silver


Question:
Which of the following atomic property was used by Dmitri Mendeleyev to arrange the elements into his periodic table?

1.Atomic Number [B] [C] [D]

2.Atomic Weight

3.Valence

4.Molar entropy


Question:
Which of the following elements have a compound named as Hydrogen peroxide?

1.Hydrogen, Carbon and Oxygen

2.Hydrogen only

3.Hydrogen and Oxygen

4.Hydrogen, Oxygen and Potassium


Question:
Which of the following elements is present in heavy water?

1.Heavy Oxygen

2.Heavy Hydrogen

3.Heavy Chlorine

4.Heavy Nitrogen


Question:
Which of the following gas is also known as laughing gas?

1.Nitrous oxide [B] [C] [D]

2.Nitrogen dioxide

3.Nitrogen hydroxide

4.Nitrogen peroxide


Question:
Which of the following gas is responsible for burning of eyes when we cut an onion?

1.Chlorine

2.Helium

3.Sulphur

4.Methane


Question:
Which of the following is correct about Acetylene?

1.It is the popular name of ethyne

2.It is the first stable member of alkyne series

3.Both a and b

4.None


Question:
Which of the following is correct about Hard water?

1.it is free from soluble salts of calcium and magnesium [B] i

2.It does not give lather with soap

3.Both a and b

4.None of the above


Question:
Which of the following is correct about Potassium sodium tartrate tetrahydrate?

1.It is also known as Globular’s salt

2.It is known to exhibit piezoelectricity

3.Both a and b

4.None of the above


Question:
Which of the following is incorrect?

1.Alloying helps in improving the properties of a metal

2.An alloy is a heterogeneous mixture of two or more metals

3.The melting point of an alloy is less than that of pure metals

4.All of the above


Question:
Which of the following is not a metalloid?

1.Boron

2.Silicon

3.Germanium

4.Titanium


Question:
Which of the following is not a non-metallic mineral?

1.Mica

2.Bauxite

3.Granite

4.Silica


Question:
Which of the following is NOT correct about the use of Quick lime?

1.Manufacturing of cement

2.Manufacturing of cement

3.Purification of sugar

4.used to extinguish fire


Question:
Which of the following is the process of gaining electrons?

1. Reduction

2.Oxidation

3.Both Oxidation and Reduction

4.Radiation


Question:
Which of the following observations about mass of an atom is / are correct?
Neutrons and Protons account for most of the mass of an atom
In comparison to extra-nuclear part, nucleus of atom is smaller in volume but heavier in mass
Select the correct option from the codes given below:

1.Only 1

2.Only 2

3.Both 1 & 2

4. Neither 1 nor 2


Question:
Which of these cannot be the reason for the permanent hardness in water?

1.calcium sulphate

2.calcium chloride

3.calcium bicarbonate

4.None of the above


Question:
Which of these compounds is also known as wood spirit?

1.Ethanol

2.Methanol

3.Propanol

4.None of the above


Question:
Which of these drugs help to reduce or abolish pain without causing impairment of consciousness?

1.Analgesics

2.Antibiotics

3.Tranquilisers

4.Antiseptics


Question:
Which of these non-metals is commonly used in fire-crackers?

1.Silicon

2.Neon

3.Sulphur

4.Fluorine


Question:
Which particle is the most essential component to continue the chain reaction during the uranium fission?

1.Electrons are gained

2.Proton

3.Neutron

4.Positron


Question:
Which particle is the most essential component to continue the chain reaction during the uranium fission?

1.Electrons are gained

2.Proton

3.Neutron

4.Positron


Question:
Which two elements were discovered by Marie Curie?

1.Polonium and Radium

2.Radium and Strontium

3.Strontium and Radon

4.Radon and Polonium


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