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Match the following prefixes with their ...

Match the following prefixes with their multiples:

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(i) micro - `10^(-6)`, (ii) deca - 10, (iii) mega - `10^6` (iv) giga - `10^9`, (v) femto - `10^(-15)`
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ICSE-SOME BASIC CONCEPTS OF CHEMISTRY -NCERT TEXT-BOOK EXERCISES (WITH HINGS AND SOLUTIONS)
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  2. What is the SI unit of mass? How is it defined?

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  3. Match the following prefixes with their multiples:

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  4. What do you mean by significant figures?

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  6. Express the following in the scientific notation: (i) 0.0048 (ii) 2...

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  7. How many significant figures are present in the following? (i) 0.002...

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  8. Round up the following upto three significant figures: (i) 34.216 ...

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  9. Fill in the blanks in the following conversions : (i) 1 km =...........

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  11. In a reaction A+B(2) rarr AB(2) Identify the limiting reagent, if ...

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  13. How are 0.50 mol Na(2)CO(3) and 0.50 M Na(2)CO(3) different?

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  14. If ten volumes of dihydrogen gas react with five volumes of dioxygen g...

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  15. Convert the following into basic units: (i) 28.7 pm (ii) 15.15 pm ...

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  16. Which one of the following will have the largest number of atoms? (i...

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  17. Calculate the molarity of a solution of ethanol in water, in which the...

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  18. What will be the mass of one""^( 12)C atom in g?

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  19. How many significant figures should be present in the answer of the fo...

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  20. Use the data given in the following table to calculate the molar mass ...

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