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When air is blown from mouth into a test...

When air is blown from mouth into a test - tube containing lime water, the lime water turned milky due to the presence of

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Due to the formation of calcium carbonate .
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Assertion (A) : When we blow into a test - tube containing lime water ,it turns milky Reason (R ) : This shows the presence of CO_(2) in the exhaled air .

CO_2 turns lime water milky, due to the formation of

Lime water contains

The gas that turns lime water milky is

A solution of salt in HCl when diluted with water turns milky. It indicates the presence of

When is passed through fresh lime water, it turns milky.

MODERN PUBLICATION-S-BLOCK ELEMENTS ( ALKALI AND ALKALINE EARTH METALS ) -PRACTICE PROBLEM
  1. Lithium compounds are slightly covalent because of its greater ........

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  2. What compounds are formed when Li, Na and K combine with oxygen ?

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  3. The most abundant alkaline earth metal is .

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  4. Which is the most abundant element among alkali metal ?

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  5. Which among the alkali metals form nitride ?

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  6. Which of the following alkali metals is most electropositive ? Li, ...

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  7. Which member of the alkaline earth metals family has (i)least reac...

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  8. Compare the first and second ionisation enthalpies of sodium and magn...

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  9. Arrange the following in the order of property mentioned : (i) BaCl2...

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  10. Answer the following : (i) What is hydrolith ? (ii) Which element ...

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  11. What is (i) dolomite (ii) milk of lime ?

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  12. Name any two ores of magnesium.

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  13. What is dead burnt plaster ?

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  14. What is the formulae of (i) Plaster of Paris (ii) Gypsum ?

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  15. What is magnesia?

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  16. When air is blown from mouth into a test - tube containing lime water,...

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  17. Name three forms of calcium carbonate .

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  18. What happens when gypsum is heated to 390 K ?

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  19. What happens when carbon dioxide is passed through lime water?

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  20. Element A burns in nitrogen to give an ionic compound B. Compound B r...

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