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Out of ozone, phosphorus, sulphur and kr...

Out of ozone, phosphorus, sulphur and krypton, the elements having the lowest and highest atomicities are respectively :

A

sulphur and krypton

B

krypton and ozone

C

phosphorus and sulphur

D

krypton and sulphur

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The correct Answer is:
D
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LAKHMIR SINGH & MANJIT KAUR-ATOMS AND MOLECULES-Exercise
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  2. The law of constant proportions was given by

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  3. Out of ozone, phosphorus, sulphur and krypton, the elements having the...

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  4. One nm is equal to :

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  5. The scientist who proposed the first letter (or first letter and anoth...

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  6. The atoms of which of the following pair of elements are most likely ...

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  7. Which of the following elements has the same molecular mass as its ato...

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  8. In water, the proportion of oxygen and hydrogen by mass is :

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

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

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  11. Copper sulphate reacts with sodium hydroxide to form a blue preci...

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

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

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

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

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

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

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

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

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  20. Define 'formula mass' of a compound.

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