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One 'u' stands for the mass of...

One 'u' stands for the mass of

A

An atom of carbon-12

B

1/12th of the carbon-12

C

1/12th of hydrogen atom

D

One atom of any of the elements

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The correct Answer is:
B
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AAKASH INSTITUTE ENGLISH-SOME BASIC CONCEPT OF CHEMISTRY-EXERCISE
  1. Boron has two stable isotopes, .^(10)B(19%) and .^(11)B(81%). The atom...

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  2. Calculate the mass of 1 amu in grams.

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  3. One 'u' stands for the mass of

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  4. What is the mass of one molecule of water in grams?

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  5. 74.5 g of a metallic chloride contain 35.5 g of chlorine. The equivale...

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  6. Two element X ( at . Mass = 75) and Y(at .mass =16) combine to given ...

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  7. Equivalent weight of crystalline oxalic acid is

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  8. Find out the equivalent weight of H(3) PO(4)in the reaction: Ca(OH)(...

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  9. Equivalent mass of a metal is 12 g "mol"^(-1). Hence, equivalent ma...

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  10. The percentage of nitrogen in HNO(3) is

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  11. What is the ratio of empirical formula mass to molecular formula mass ...

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  12. The compound in which mass percentage of carbon is 75% and that of hyd...

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  13. Identify the molecule having empirical formula CH(2)O

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  14. 4 g of a metal oxide contains 1.6 g-oxygen, then equivalent mass of th...

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  15. 8 gm H(2) and 32 gm O(2) is allowed to recant to form water then whic...

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  16. Equal volume of N(2) and H(2) react to form ammonia under suitable con...

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  17. How many grams of calcium oxide is obtained on heating 100 g of CaCO(3...

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  18. The volume of O(2) at STP required for the complete combustion of 4 g ...

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  19. 0.9 g Al reacts with dil. HCl to give H(2). The volume of H(2) evolve...

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  20. Which of the following statement is correct?

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