Question Text
Question 3 :
Alkali metal when exposed to air tarnish quickly due to the ________.<br/>
Question 4 :
Choose the correct answer form the alternatives given.<br>All alkali halides are soluble in water except LiF. The low solubility of LiF in water is due to its ______(i) the low solubility of CsI is due to ______(ii). LiF is soluble in ______(iii) solvents.
Question 7 :
General formula of the compound that will be formed, when oxygen reacts with an alkali metal, is :
Question 9 :
Statement: The lattice energy of $LiCl$ is smaller than $NaCl$.<br/><br/>State whether the given statement is true or false.<br/>
Question 10 :
Arrange the following in increasing order of their atomic radius $Na, K, Mg, Rb$
Question 13 :
The magnetic quantum number of the valence electron of sodium is:
Question 14 :
A metal $M$ react with $N_2$ to give a compound $'A'(M_3N).\ 'A'$ on heating at high temperature gives back $'M'$ and $'A'$ on reacting with $H_2O$ gives a gas $'B'$. $B$ turns $CuSO_4$ solution blue on passing through it. $A$ and $B$ can be
Question 15 :
Which of the following will have the largest size in water?<br>