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SOME BASIC CONCEPTS OF CHEMISTRY
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CBSE COMPLEMENTARY MATERIAL-SOME BASIC CONCEPTS OF CHEMISTRY -1-MARK QUESTIONS
- Name two chemical compounds used in treatment of cancer.
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- Name two chemical compounds used in treatment of cancer.
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- Classify following as pure substances and mixtures : air, glucose, gol...
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- Which measurement is more precise 4.0g or 4.00g ?
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- How many significant figures are there in (i) 3.070 and (ii) 0.0025 ?
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- Express the following in the scientific notation : (i) 0.0048 (ii) 234...
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- If ten volumes of dihydrogen gas react with five volumes of dioxygen g...
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- Define unified mass (u).
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- Define molar volume of a gas.
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- At STP, what will be the volume of 6.022 xx 10^(23) molecules of H(2) ...
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- 1L of a gas at STP weighs 1.97g. What is molecular mass ?
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- Write the relationship between empirical formula and molecular formula...
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- Which is more informative ? Empirical formula or Molecular formula.
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- How are 0.50 mol Na(2)CO(3) and 0.50 M Na(2)CO(3) different?
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- Why molality is preferred over molarity of a solution ?
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- Define the term 'molarity of a solution'.
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- What is the effect of temperature on molarity of a solution?
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- What is limiting reactant in a reaction ?
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