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Write the composition of gunpowder....

Write the composition of gunpowder.

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Gunpowder is an explosive mixture containing `KNO_3` along with charcoal and sulphur.
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CHHAYA PUBLICATION-s-BLOCK ELEMENTS -QUESTION-ANSWER ZONE FOR BOARD EXAMINATION (SHORT ANSWER TYPE)
  1. The reaction between marble and dilute H2SO4 is not used to prepare CO...

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  2. Why are the group-2 metals harder and have higher melting and boiling ...

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  3. Give some common tests used for detection of calcium compounds.

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  4. A white solid (A) when heated liberates a colourless gas which does no...

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  5. Compare the alkali metals and alkaline earth metals with respect to th...

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  6. Compare the alkali metals and alkaline earth metals with respect to th...

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  7. Compare the alkali metals and alkaline earth metals with respect to th...

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  8. Why halides of Be dissolve in organic solvents while those of Ba do no...

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  9. Name the important compound of Li used in organic synthesis. How the c...

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  10. What is the oxidation state of Kin KO2 and why is this compound parama...

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  11. Write the composition of gunpowder.

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  12. Why is Na2S2O3 used in photography?

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  13. The affinity of sodium towards water is used in drying benzene. Explai...

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  14. The crystalline salts of alkaline earth metals contain more water of c...

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  15. Lithium salts are more stable if the anion present in the salt is smal...

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  16. What are the properties that make oxides of MgO and BeO useful for lin...

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  17. How will you distinguish between : Mg and Ca

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  18. How will you distinguish between : Na2SO4 and BaSO4

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  19. How will you distinguish between : Na2CO3 and NaHCO3

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  20. How will you distinguish between : LiNO3 and KNO3

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