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General Science Online Exam Quiz

Important questions about General Science. General Science MCQ questions with answers. General Science exam questions and answers for students and interviews.

1. What is the wavelength of visible spectrum?

Options

A : 8500 - 9800 angstrom

B : 7800 - 8000 angstrom

C : 3900 - 7600 angstrom

D : 1300 - 3000 angstrom

2. In an atomic nucleus, neutrons and protons are held together by

Options

A : gravitational forces

B : exchange forces

C : coulombic forces

D : magnetic forces

3. The isotope of uranium capable of sustaining chain reaction is

Options

A : U-235

B : U-245

C : U-239

D : U-238

4. The dark lines in the solar spectrum are due to

Options

A : absorption of corresponding wavelengths by the outer layers of the sun

B : destructive interference between waves of certain definite wavelengths

C : absorption of corresponding wavelengths by the prism used in the photograph

D : absence of corresponding wavelengths from the light emitted by the core of the sun

5. Atoms are composed of

Options

A : electrons and protons

B : electrons only

C : protons only

D : electrons and nuclei

6. Who suggested that most of the mass of the atom is located in the nucleus?

Options

A : Thompson

B : Bohr

C : Rutherford

D : Einstein

7. Which of the following has a least penetrating power?

Options

A : All have same penetrating power

B : Beta Particles

C : Alpha particles

D : Gamma rays

8. The age of most ancient geological formations is estimated by

Options

A : Ra - Si method

B : Potassium - argon method

C : C 14 method

D : Uranium - lead method

9. In an atomic explosion, enormous energy is released which is due to

Options

A : conversion of chemical energy into heat energy

B : conversion of mechanical energy into nuclear energy

C : conversion of mass into energy

D : conversion of neutrons into protons

10. How many colours the sunlight spectrum has?

Options

A : Three

B : Seven

C : Four

D : Five

1. Isotopes are separated by

Options

A : crystallisation

B : sublimation

C : distillation

D : filtration

2. Which of the following rays are more penetrating?

Options

A : Beta rays

B : Alpha rays

C : Gamma rays

D : X-rays

3. Which of the following is commonly called a 'polyamide'?

Options

A : Terylene

B : Nylon

C : Rayon

D : Orlon

4. Soap is a mixture of sodium or potassium salts of

Options

A : dicarboxylic acids

B : monocarboxylic acids

C : glycerol

D : tricarboxylic acids

5. Deep blue colour is imparted to glass by the presence of

Options

A : cupric oxide

B : nickel oxide

C : cobalt oxide

D : iron oxide

6. Optic fibres are mainly used for which of the following?

Options

A : Musical instruments

B : Food industry

C : Weaving

D : Communication

7. Paper is manufactured by

Options

A : Wood and resin

B : Wood, sodium and bleaching powder

C : Wood, calcium, hydrogen sulphite and resin

D : Wood and bleaching powder

8. Which is/are the important raw material(s) required in cement industry?

Options

A : Gypsum and Clay

B : Clay

C : Limestone and Clay

D : Limestone

9. In vulcanisation, natural rubber is heated with

Options

A : Carbon

B : Silicon

C : Sulphur

D : Phosphorous

10. Which of the following is used for removing air bubbles from glass during its manufacture?

Options

A : Arsenous oxide

B : Potassium carbonate

C : Soda ash

D : Feldspar

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