Tables 1 to 50 for fast calculation

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Tables from 1 to 25


Tables from 26 to 50


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Chemical Formulas

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Science Class 10th PYQs and Practice Questions for Board Exams

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  Science PYQs and IMP Qs        Class 10th Science PYQs and Practice              Questions for Board Exams 2023- 2024                         ayushagarwal_maths                     MCQs                  Q.1 . Light of which of the following colour is scattered least ?  (a) Violet  (b) Red (c) Blue  (d) Yellow  Ans. (b) Red  Q.2. In an electrolysis of water, if the mass of the gas collected at the anode is mₐ and the mass of the gas collected at the cathode is mc the value of (mc/mₐ) is :  (a) 8  (b) 16  (c) 1/16  (d) 1/8  Ans. (d) 1/8 Q.3. The unit of electric energy is :  (a) kilowatt  (b) kilowatt-hour  (c) watt  (d) kilowatt per hour  Ans.   (b) kilowatt-hour  Q.4. The average weight of an adult human brain is :  (a) 1200 g  (b) 1350g  (c) 1450 g  (d) 1500 g  Ans. (b) 1350 g  Q.5. In which life processes we take energy from food ?  (a) Nutrition (b) Excretion  (c) Circulation (d) All of these  Ans. (a) Nutrition Q.6. Why do estrogen levels fall after menopause ?  (a) Cells of
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