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In hydrogen peroxide (H(2)O(2)), the pr...

In hydrogen peroxide `(H_(2)O_(2))`, the proportion of hydrogen and oxygen by mass is :-

A

`1 : 8`

B

`1 : 16`

C

`8 : 1`

D

`16 : 1`

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The correct Answer is:
B
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LAKHMIR SINGH & MANJIT KAUR-ATOMS AND MOLECULES-Exercise
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  2. In water, the proportion of oxygen and hydrogen by mass is :

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  3. In hydrogen peroxide (H(2)O(2)), the proportion of hydrogen and oxyg...

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  4. The symbols of the elements cobalt, aluminium, helium and sodium respe...

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  6. Potassium chlorate decomposes, on heating, to form potassium chlori...

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  7. In an experiment, 4.90 g of copper oxide was obtained from 3.92 g of...

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  8. Magnesium and oxygen combine in the ratio of 3 : 2 by mass to for...

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  9. When 5g of calcium is burnt in 2g of oxygen, then 7 g of calcium o...

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  10. An liquid compound X of molecular mass 18 u can be obtained from a n...

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  11. One of the forms of a naturally occurring solid compound P is usually...

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  12. What do we call those particles which have more or less electrons t...

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  13. What do we call those particles which have : (a) more electrons ...

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  14. Define 'formula mass' of a compound.

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  15. What do we call those particles which are formed : (a) by the gain o...

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  16. State whether the following statements are true or false : (a) A ...

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  17. Write dow the formulae for the following compounds : (a) Calcium o...

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  18. An element Z has a valency of 3. What is the formula of oxide of Z ?

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  19. What is the name of a particle which contains 10 electrons, 11 protons...

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  20. Name the particle which has 18 electrons , 18 neutrons and 17 protons...

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