Chemical Properties of Group 14 Elements

Identify the incorrect statement about ${SiO}_2$ (silica) from the following:

Which of the following species do not exist?

An inorganic compound $\left(\mathrm{A}\right)$ made of two most occurring elements in the earth's crust and used in building construction when made to react with carbon, forms a poisonous gas $\left(\mathrm{B}\right)$ which is most stable diatomic molecule, Compound $\left(\mathrm{A}\right)$ and $\left(\mathrm{B}\right)$ are

Which of the following statements is incorrect?

List the reasons why carbon shows anomalous behaviour from rest of the members of its family.

List the anomalous properties of carbon.

Which of the following halides does not hydrolyse?

Hot conc. ${\mathrm{H}}_2{\mathrm{SO}}_4$ acts as strong oxidising agent which of the following element is oxidised by conc. ${\mathrm{H}}_2{\mathrm{SO}}_4$ into two gaseous products ?

Consider the following route of reactions

${\mathrm{R}}_2{\mathrm{SiCl}}_2+$ Water $\to \left(\mathrm{A}\right)\stackrel{\mathrm{polymerisation}}{\to }$ $\left(\mathrm{B}\right)$

Compound $\left(\mathrm{B}\right)$ in above reaction is

Give the formula of a compound in which carbon exhibit an oxidation state of $+4$.

Catenation is the tendency to link with one another through covalent bonds to form chains and rings. The element that cannot show catenation property is

These results are obtained by the three separate samples of a solution of a single salt. One formed a white precipitate with excess ammonia solution, one gives a white precipitate with dilute NaCl solution and one formed a black precipitate with H₂S. The salt would be:

When ${SiCl}_4$ gets hydrolysed, after hydrolysis.

a. Hybridization of oxygen atom gets changed.
b. Bond angle around oxygen atom gets changed.
c. The hybridization of the silicon remains the same.

Which of the following compound acts as a reducing agent?

a. $\mathrm{InCl}$
b. $\mathrm{SnO}$
c. ${\mathrm{PbH}}_4$
d. $\mathrm{CO}$

Lead $\text{(IV)}$ oxide is:

Which of the following statement is correct?

Which among the following is the most acidic oxide?

Which of the following statements is incorrect?

Which among the following is the strongest oxidising agent?