General Science

General Science is a highly scoring and concept-based section of General Knowledge for competitive examinations such as SSC, Banking, Railways, Defence, NDA, CDS and State government exams. This subject includes questions from Physics, Chemistry, Biology, Environment and Basic Scientific Principles. With clear concepts and regular practice, General Science becomes one of the easiest sections to score well.
On this page, you will find a wide collection of General Science GK questions in Hindi and English (Bilingual) with correct answers and easy-to-understand explanations. These MCQs are prepared according to the latest exam pattern and previous year question trends, making them ideal for daily practice and quick revision. The bilingual format helps both Hindi and English medium students to understand scientific concepts clearly.
Regular practice of General Science MCQs strengthens your conceptual understanding and improves problem-solving ability. These questions are extremely useful for aspirants preparing for SSC GD, SSC CGL, CHSL, Banking, RRB, NDA, CDS, Police and State-level competitive exams. Practice these General Science MCQs daily to boost your confidence and scoring potential.

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The molecular mass of a compound is 63 u

The molecular mass of a compound is 63 u. If it contains one hydrogen atom and three oxygen atoms, the atomic mass of the remaining element is : рдХрд┐рд╕реА рдпреМрдЧрд┐рдХ рдХрд╛ рдЖрдгрд╡рд┐рдХ рджреНрд░рд╡реНрдпрдорд╛рди 63 u рд╣реИред рдпрджрд┐ рдЗрд╕рдореЗрдВ рдПрдХ рд╣рд╛рдЗрдбреНрд░реЛрдЬрди рдкрд░рдорд╛рдгреБ рдФрд░ рддреАрди рдСрдХреНрд╕реАрдЬрди рдкрд░рдорд╛рдгреБ рд╣реИрдВ, рддреЛ рд╢реЗрд╖ рддрддреНрд╡ рдХрд╛ рдкрд░рдорд╛рдгреБ рджреНрд░рд╡реНрдпрдорд╛рди __________рд╣реИред

The molecular mass of a compound is 63 u Read More ┬╗

Bacteria that perform anoxygenic photosynthesis use which of the following compounds as an electron donor?

Bacteria that perform anoxygenic photosynthesis use which of the following compounds as an electron donor? рдСрдХреНрд╕реАрдЬрди рд░рд╣рд┐рдд (anoxygenic) рдкреНрд░рдХрд╛рд╢ рд╕рдВрд╢реНрд▓реЗрд╖рдг рдХрд░рдиреЗ рд╡рд╛рд▓реЗ рдмреИрдХреНрдЯреАрд░рд┐рдпрд╛ рдЗрд▓реЗрдХреНрдЯреНрд░реЙрди рджрд╛рддрд╛ рдХреЗ рд░реВрдк рдореЗрдВ рдирд┐рдореНрдирд▓рд┐рдЦрд┐рдд рдореЗрдВ рд╕реЗ рдХрд┐рд╕ рдпреМрдЧрд┐рдХ рдХрд╛ рдЙрдкрдпреЛрдЧ рдХрд░рддреЗ рд╣реИрдВ?

Bacteria that perform anoxygenic photosynthesis use which of the following compounds as an electron donor? Read More ┬╗

Galvanisation protects iron from

Galvanisation protects iron from rusting by coating it with a thin layer of: рдпрд╢рджрд▓реЗрдкрди┬а рд▓реЛрд╣реЗ рдкрд░ ____________ рдХреА рдкрддрд▓реА рдкрд░рдд рдЪреЭрд╛рдХрд░ рдЙрд╕рдХреЛ рдЬрдВрдЧ рд╕реЗ рд╕реБрд░рдХреНрд╖рд┐рдд рдХрд░рддрд╛ рд╣реИред

Galvanisation protects iron from Read More ┬╗

In human physiology, blood is associated with which organ system?

In human physiology, blood is associated with which organ system? рдорд╛рдирд╡ рд╢рд░реАрд░ рдХреНрд░рд┐рдпрд╛ рд╡рд┐рдЬреНрдЮрд╛рди рдХреЗ рдкреНрд░рдореБрдЦ рддрддреНрд░реЛрдВ рдореЗрдВ рд╕реЗ рд░рдХреНрдд рдХрд┐рд╕ рдЕрдВрдЧ рддрдВрддреНрд░ рд╕реЗ рд╕рдВрдмрдВрдзрд┐рдд рд╣реИрдВ?

In human physiology, blood is associated with which organ system? Read More ┬╗

Which of the following devices works on

Which of the following devices works on ArchimedesтАЩ principle? рдирд┐рдореНрдирд▓рд┐рдЦрд┐рдд рдореЗрдВ рд╕реЗ рдХреМрди-рд╕рд╛ рдЙрдкрдХрд░рдг, рдЖрд░реНрдХрд┐рдорд┐рдбреАрдЬ рдХреЗ рд╕рд┐рджреНрдзрд╛рдВрдд рдкрд░ рдХрд╛рд░реНрдп рдХрд░рддрд╛ рд╣реИ?

Which of the following devices works on Read More ┬╗

When a stone is spun uniformly in a horizontal plane using a string, choose the correct statement:

When a stone is spun uniformly in a horizontal plane using a string, choose the correct statement: рдпрд╣ рдорд╛рдирддреЗ рд╣реБрдП рдХрд┐ рдПрдХ рдкрддреНрдерд░ рдХреЛ рдПрдХ рдбреЛрд░реА (String) рдХреЗ рдорд╛рдзреНрдпрдо рд╕реЗ рдХреНрд╖реИрддрд┐рдЬ рддрд▓ рдореЗрдВ рдПрдХрд╕рдорд╛рди рдЪрд╛рд▓ рд╕реЗ рдШреБрдорд╛рдпрд╛ рдЬрд╛рддрд╛ рд╣реИ, рд╕рд╣реА рд╡рд┐рдХрд▓реНрдк рдХрд╛ рдЪрдпрди рдХрд░реЗрдВред

When a stone is spun uniformly in a horizontal plane using a string, choose the correct statement: Read More ┬╗

If several rays of light parallel to the

If several rays of light parallel to the principal axis are falling on a convex lens, which of the following statements is correct for the refracted ray? рдпрджрд┐ рдореБрдЦреНрдп рдЕрдХреНрд╖ рдХреЗ рд╕рдорд╛рдВрддрд░ рдкреНрд░рдХрд╛рд╢ рдХреА рдХрдИ рдХрд┐рд░рдгреЗрдВ рдПрдХ рдЙрддреНрддрд▓ рд▓реЗрдВрд╕ рдкрд░ рдкреЬ рд░рд╣реА рд╣реИрдВ, рддреЛ рдЕрдкрд╡рд░реНрддрд┐рдд рдХрд┐рд░рдг рдХреЗ рд╕рдВрдмрдВрдз рдореЗрдВ рдирд┐рдореНрдирд▓рд┐рдЦрд┐рдд рдореЗрдВ рд╕реЗ рдХреМрди-рд╕рд╛ рдХрдерди рд╕рд╣реА

If several rays of light parallel to the Read More ┬╗

Why does the blue colour of copper

Why does the blue colour of copper sulphate solution fade when an iron nail is dipped in it? рдХреЙрдкрд░ рд╕рд▓реНрдлреЗрдЯ рд╡рд┐рд▓рдпрди рдореЗрдВ рд▓реЛрд╣реЗ рдХреА рдХреАрд▓ рдбреБрдмреЛрдиреЗ рдкрд░ рдЙрд╕рдХрд╛ рдиреАрд▓рд╛ рд░рдВрдЧ рдлреАрдХрд╛ рдХреНрдпреЛрдВ рдкреЬ рдЬрд╛рддрд╛ рд╣реИ?

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