Question

Which of the following allotropic forms of carbon is isomorphous with crystalline silicon?

Solution

Correct option is

Diamond

Each silicon atom in crystalline structure of silicon is tetrahedrally surrounded by four other silicon atoms. This structure is similar to that of diamond.

SIMILAR QUESTIONS

Q1

Thermodynamically the most stable form of carbon is

Q2

The compound ‘C’ in the following sequence of reaction is

                              

Q3

The number of OH groups directly linked to boron atoms in Na2B4O7.10 H2O is

Q4

From B2H6 all the following can be prepared except

Q5

A metal, M forms chlorides in +2 and +4 oxidation states. Which of the following statements about these  chlorides is correct?

Q6

In which of the following silicates, cyclic structure is present?

Q7

Al2O3 can be converted to anhydrous AlCl3 by heating

Q8

The number of isomers possible for disubstituted borazine, B3N3H3X2 is

Q9

Which of the following oxidation states are the most characteristic for lead and tin respectively: 

Q10

The correct order of C – O bond length among CO, , CO2 is: