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Science Mock Test 5 – Important Questions for Exam Preparation

Home / Tests / Scholar Tests / Science Mock Test 5 – Important Questions for Exam Preparation
🏆 Scholarship test ✓ Free Class 10 Science

About this test

This Science (विज्ञान) mock test is a mixed practice paper for Class 10 students who want to revise Physics, Chemistry and Biology together. It includes questions from Electric Current and Circuits (विद्युत धारा और परिपथ), Spherical Mirrors (गोलीय दर्पण), Chemical Reactions (रासायनिक अभिक्रियाएँ), Ionic Compounds (आयनिक यौगिक), Photosynthesis (प्रकाश संश्लेषण) and Variation (विभिन्नता), so you can practise both concepts and reasoning-based questions. Solve it in one sitting with a timer, without looking at your book. Afterwards, check each answer carefully and note the topics where you lost marks. Regular practice like this builds speed and confidence for school tests and the board exam (बोर्ड परीक्षा).

39Questions
180Minutes
80Marks

What this test covers

  • Electric Current, Potential Difference and Circuit Diagrams (विद्युत धारा, विभवांतर और परिपथ आरेख)
  • Factors Affecting Resistance (प्रतिरोध को प्रभावित करने वाले कारक)
  • Image Formation by Concave and Convex Mirrors (अवतल और उत्तल दर्पण द्वारा प्रतिबिंब बनना)
  • Magnification (आवर्धन)
  • Oxidation and Reduction (उपचयन और अपचयन)
  • Formation and Properties of Ionic Compounds (आयनिक यौगिकों का बनना और उनके गुण)
  • Photosynthesis in Plants (पौधों में प्रकाश संश्लेषण)
  • Variation and Natural Selection (विभिन्नता और प्राकृतिक चयन)

Questions students ask

What is the SI unit of electric current (विद्युत धारा)?

Ampere (एम्पियर, A).

Which mirror is used as a rear-view mirror in vehicles?

A convex mirror (उत्तल दर्पण), because it gives a wider field of view and an erect image.

What is the nature of the image formed by a plane mirror?

Virtual, erect and of the same size as the object.

What is oxidation (उपचयन)?

The gain of oxygen or the loss of electrons in a chemical reaction.

Why do ionic compounds (आयनिक यौगिक) have high melting points?

Because of the strong electrostatic force of attraction between the positive and negative ions.

What are the raw materials of photosynthesis (प्रकाश संश्लेषण)?

Carbon dioxide, water and sunlight, with chlorophyll (क्लोरोफिल) present in the leaves.

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