The p-Block Ele...

The form of $$SiO_{2}$$ used as piezoelectric material :

The material used in solar cell contains :

 List -I                                                          List -2
A. The purest form of  $$SiO_{2}$$                         1. Quartz 
B. Carborundum                                            2. Graphite
C. Corundum                                                 3. $$SiC$$
D. Hexagonal rings                                        4. $$ Al_{2} O_{3}$$
                                                                       5.  Diamond 

List -I                                                        List -2
A. Reactive form of Carbon                       1. HF
B. Acid employed for                                2. Diamond
etching of glass
C. Synthesis gas                                       3. Charcoal
D. Unreactive form of Carbon                   4. $$CO   H_{2}$$     
The correct match with A B C D is ?

Which of the following does not exhibit inert pair effect?

The most abundant metal among the following is:

Among III-A group elements, the elements with highest and lowest I.P. values are:

Element with a giant molecular structure is:

Assertion (A) : Thallium compounds are stable in +1 oxidation state.
Reason (R) : The $$6s^{2}$$ electrons in Tl show reluctance in participating in bond formation.

The electro-positive character increases from B to Al and then decreases from Al to Tl because of: