Which of the following metals is the most reactive?
- A$Na$
- B$K$
- C$Rb$
- D$Mg$
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Which among the following is used in the breathing equipment for mountaineers?
$Ca + 2C$ $\rightarrow CaC_2$ $\xrightarrow{N_2, \Delta} A$
Compound $(A)$ is used as a/an:
Compound $(A)$ is used as a/an:
Easy
View SolutionWhich of the following statements is incorrect?
Medium
View SolutionWhy is $LiF$ almost insoluble in water whereas $LiCl$ is soluble not only in water but also in acetone?
Difficult
View SolutionMatch column $-I$ with column $-II$ :
Column $-I$ Column $-II$ $(a).$ Spodumene $(p).$ $K$ $(b).$ Borax $(q).$ $Na$ $(c).$ Sylvine $(r).$ $Li$ $(d).$ Chile saltpetre $(s).$ $Ca$
| Column $-I$ | Column $-II$ |
| $(a).$ Spodumene | $(p).$ $K$ |
| $(b).$ Borax | $(q).$ $Na$ |
| $(c).$ Sylvine | $(r).$ $Li$ |
| $(d).$ Chile saltpetre | $(s).$ $Ca$ |
Medium
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