The oxide of potassium that does not exist is
- A$K_{2}O$
- B$KO_{2}$
- C$K_{2}O_{2}$
- D$K_{2}O_{3}$
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Given below are two statements: One is labelled as Assertion $A$ and the other is labelled as Reason $R$.
Assertion $A$ :- Sodium is about $30$ times as abundant as potassium in the oceans.
Reason $R$ :- Potassium is bigger in size than sodium.
In the light of the above statements,choose the correct answer from the options given below:
Assertion $A$ :- Sodium is about $30$ times as abundant as potassium in the oceans.
Reason $R$ :- Potassium is bigger in size than sodium.
In the light of the above statements,choose the correct answer from the options given below:
The $Cs^{+}$ ion imparts a violet color to the flame. This is due to the fact that the emitted radiation has .........
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