p-Block Elements

All the compounds listed in Column I react with water. Match the result of the respective reactions with the appropriate options listed in Column II.



Column I
Column II


(A) (CH3)2SiCl2
(P) Hydrogen halide formatio...

The total number of diprotic acids among the following is:
H3PO4, H2SO4, H3PO3, H2CO3, H2S2O7, H3BO3, H3PO2, H2CrO4 and H2SO3

The value of \(n\) in the molecular formula \(\mathrm{Be_n Al_2Si_6O_{18}}\) is ___________.

Match each of the reactions given in Column I with the corresponding product(s) given in Column II:

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The nitrogen oxide(s) that contain(s) N-N bond(s) is(are)

In the reaction
\(\mathrm{2X+B_2H_6\to[BH_2(X)_2]^+[BH_4]^-}\)
the amine(s) X is(are) :

The reaction of P\(_4\) with X leads selectively to P\(_4\)O\(_6\). The X is

White phosphorus on reaction with NaOH gives PH\(_3\) as one of the products. This is a:

Among the following, the correct statement is :

Among the following, the correct statement is:

Statement 1 : Pb\(^{4+}\) compounds are stronger oxidising agents than Sn\(^{4+}\) compounds.
and
Statement 2 : The higher oxidation states for the group 14 elements are more stable for the heavier members of the group due to 'inert pair ef...

A solution of colourless salt H on boiling with excess NaOH produces a non-flammable gas. The gas evolution ceases after sometime. Upon addition of Zn dust to the same solution, the gas evolution restarts. The colourless salt(s) H is(are):

STATEMENT-1 : Band gap in germanium is small.
STATEMENT-2 : The energy gap of each germanium atomic energy level is infinitesimally small.

Statement-1 : Molecules that are not superimposable on their mirror images are chiral.
Statement-2 : All chiral molecules have chiral centres.

XeF\(_4\) and XeF\(_6\) are expected to be

The structure of XeO\(_3\)

Argon is used in arc welding because of its

Statement 1 : In water, orthoboric acid behaves as a weak monobasic acid.

Statement 2 : In water, orthoboric acid acts as a proton donor.

The percentage of p-character in the orbitals forming P-P bonds in P\(_4\) is

\(\mathrm{B}(\mathrm{OH})_3+\mathrm{NaOH} \quad \mathrm{NaBO}_2+\mathrm{Na}\left[\mathrm{~B}(\mathrm{OH})_4\right]\)$+\mathrm{H}_2 \mathrm{O}$
How can this reaction be made to proceed in forward direction?

\(\text { Match the Column I with Column II : }\)


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The species present in solution when CO2 is dissolved in water are

(A) Calculate the amount of calcium oxide required to react with 852 g of P\(_4\)O\(_{10}\).
(B) Write the structure of P\(_4\)O\(_{10}\).

Specify the coordination geometry around and hybridisation of N and B atoms in a 1 : 1 complex of BF3 and NH3

The oxidation number of sulphur in S8,S2F2,H2S
respectively, are