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V PUBLICATION-SOME BASIC CONCEPTS OF CHEMISTRY-QUESTION BANK
- State the number of significant figures in the following nựmbers. i. ...
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- 4.62g of sugar and 2.935g of table salt were mixed with 28.2g of water...
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- What is the difference between 3.0 and 3.00 g ?
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- Express the following numbers to four significant figures. i. 5.60798...
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- Calculate the molecular mass of the following? i. C6H(12)O6 ii. HNO...
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- Boron' occurs in nature in the form of two isotopes '5^(11)B' and '5^(...
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- Calculate the number of atoms in: i. 0.25 mole àtoms of carbon ii. 0...
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- A fIask P contains 0.5 mole of oxygen gas. Another flask Q contains 0....
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- Calculate the number of moles of iron in a sample containing '1.0 xx 1...
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- Calculate the no. of moles of phosphorus in 92.9 g of phosphorus assum...
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- Calculate the volume at STP occupied by i. 14g of nitrogen
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- Calculate the volume of 34 g of 'NH3' at STP?
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- The molecular mass of benzene is 78 and its percentage composition is ...
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- A compound contains 4.07% hydrogen, 24.27% carbon and 71.65% chlorine....
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- Calculate the percentage composition of calcium nitrate (Ca(NO3)2).
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- 1.0 g of Mg is burnt in a closed vessel which contains 0.5 g of O2 . W...
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- A solution is prepared by dissolving 4 g of NaOH to give 500 ml of it....
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- What is the molality of a solution which contians 36 g of glucose '(C6...
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- The molecular mass of an organic compound is 78 and its composition i...
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- What is the different between the following. (i) 2.5 xx 10^3 g and 2....
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