Question
How many groups are there in the modern long form of the periodic table?
How many groups are there in the modern long form of the periodic table? (a) 7 (b) 17 (c) 15 (d) 18
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Question
The characteristics of a fuse wire are
The characteristics of a fuse wire are: (a) High resistance, low melting point (b) Low resistance, high melting point (c) Low resistance,…
Question
Which of the following rays has the highest capacity to ionise gases?
Which of the following rays has the highest capacity to ionise gases? (a) α-ray (b) γ-ray (c) β-ray (d) Light ray
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Madhyamik Class 10 Physical Science Solved Paper 2024
Madhyamik Class 10 Physical Science Question Paper Solved 2024 Physical Science Time – Three Hours Fifteen Minutes (First fifteen minutes for reading the Question…
Question
Write down the reaction of the industrial production of Ethylene. Mention two uses of Ethylene.
Write down the reaction of the industrial production of Ethylene. Mention two uses of Ethylene. OR How is carbon tetrachloride produced by…
Question
Write the names of the chemicals used and the balanced chemical equation in the industrial production of urea.
Write the names of the chemicals used and the balanced chemical equation in the industrial production of urea.
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What is the purpose of Electro-plating? What electrolyte is used to plate gold on any substance?
What is the purpose of Electro-plating? What electrolyte is used to plate gold on any substance?
Question
What is meant by ionisation energy of an atom of an element? Arrange Na, Rb, Li and Cs in the increasing order of their ionisation energy.
What is meant by ionisation energy of an atom of an element? Arrange Na, Rb, Li and Cs in the increasing order…
Question
Compare the charge, penetrating power and ionising power of α and γ rays.
Compare the charge, penetrating power and ionising power of α and γ rays.
Question
Write down the difference between dynamo and electric motor. What is earthing?
Write down the difference between dynamo and electric motor. What is earthing?