Number of water molecules in washing soda and soda ash respectively are :
Lime reacts exothermally with water to give 'A' which has low solubility in water. Aqueous solution of 'A' is often used for the test of CO$$_2$$, a test in which insoluble B is formed. If B is further reacted with CO$$_2$$ then soluble compound is formed, 'A' is :
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
Given below are two statements:
Statement I : Lithium and Magnesium do not form superoxide
Statement II : The ionic radius of $$\mathrm{Li}^{+}$$ is larger than ionic radius of $$\mathrm{Mg}^{2+}$$
In the light of the above statements, choose the most appropriate answer from the options given below :