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NCERT-SOME BASIC CONCEPTS OF CHEMISTRY -EXERCISE
- If the density of methanol is 0.793 kg L^(-1) what is its volume neede...
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- Pressure is determined as force per unit area of the surface. The SI u...
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- What is the SI unit of mass? How is it defined?
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- Match the following prefixes with their multiples: {:(,"Prefixes","...
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- What do you mean by significant figures?
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- A sample of drinking water was found to be severely contaminated with ...
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- Express the following in the scientific notation: a. 0.0048 b. 234...
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- How many significant figures are present in the following? a. 0.0025...
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- Round up the following upto three significant figures: a. 34.216 b...
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- The following data are obtained when dinitrogen and dioxygen react to ...
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- If the speed of light is 3.0xx10^(8) m s^(-1), calculate the distance ...
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- In a reaction A+B(2) rarr AB(2) Identify the limiting reagent, if ...
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- Dinitrogen and dihydrogen react with each other to produce ammonia acc...
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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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- If ten volumes of dihydrogen gas reacts with five volumes of dioxygen ...
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- Convert the following into basic units: a. 28.7 p m b. 15.15 p m ...
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- Which one of the following will have the largest number of atoms? (i...
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- Calculate the molarity of a solution of ethanol in water in which the ...
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- What will be the mass of one .^(12)C atom in g?
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- How many significant figures should be present in the answer of the fo...
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