List of top Chemistry Questions on p -Block Elements asked in KCET

In the detection of II group acid radical, the salt containing chloride is treated with concentrated sulphuric acid, the colourless gas is liberated. The name of the gas is

In the detection of II group acid radical, the salt containing chloride is treated with concentrated sulphuric acid, the colourless gas is liberated. The name of the gas is

Very pure $N_2$ can be obtained by

Addition of mineral acid to an aqueous solution of Borax, the following compound is formed

Which of the following element forms $p_{\pi} - p_{\pi}$ bond with itself ?

Extraction of chlorine from brine solution is based on

On heating with concentrated $NaOH$ solution in an inert atmosphere of $CO_2$ white phosphorous gives a gas. Which of the following statement is incorrect about the gas ?

An alkali metal hydride $(NaH)$ reacts with diborane in $A$ to give a tetrahedral compound $B$ which is extensively used as reducing agent in organic synthesis. The compounds $A$ and $B$ respectively are

A crystalline solid $X$ reacts with $dil. HCl$ to liberate a gas $Y.Y$ decolourises acidified $KMnO_4$. When a gas $'Z'$ is slowly passed into an aqueous solution of $Y$, colloidal sulphur is obtained. $X$ and $Z$ could be, respectively

$MnO_2 + HCl { ->[\Delta] } A(g)$ $A(g)+ F_{2 {\text{(excess)}}}->[573 \, K] B(g)$ $B(l)+ U(s)\rightarrow C(g)+D(g)$ The gases $A, B, C$ and $D$ are respectively

Hybridised states of carbon in Graphite and Diamond are respectively

Excess of $PCl_5$ reacts with conc. $H_2SO_4$ giving

The number of naturally occurring p-block elements that are diamagnetic is

Helium is used in balloons in place of hydrogen because it is

In the brown ring test, the brown colour of the ring is due to

Which is the most easily liquifiable rare gas ?

When conc. $H_2SO_4$ is heated with $P_2 O_5$, the acid is converted into

The formation of $O^{+}_2 [P_t F_6 ]^-$ is the basis for the formation of Xenon fluorides. This is because

$P_4O_{10}$ is not used to dry $NH_3$ gas because

Phosphine may be produced by adding lo water some

Red P can be obtained from white P by

The correct decreasing order of boiling point of hydrogen halides is

Which of the following halides cannot be hydrolysed ?