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

Compound A reacts with $NH _4 Cl$ and forms a compound B.

Compound B reacts with $H _2 O$ and excess of $CO _2$ to form compound $C$ which on passing through or reaction with saturated $NaCl$ solution forms sodium hydrogen carbonate Compound $A , B$ and $C$, are respectively.

Sum of \(\pi\)-bonds present in peroxodisulphuric acid and pyrosulphuric acid is___________

The total number of acidic oxides from the following list is: $NO , N _2 O , B _2 O _3, N _2 O _5$, $CO , SO _3, P _4 O _{10}$

Match List I with List II 

LIST ILIST II
AXeF4​
 		ISee-saw
BSF4​
 		IISquare planar
CNH4+​
 		IIIBent T-shaped
DBrF3​IVTetrahedral

Choose the correct answer from the options given below :

\(H_2O_2\) behave like reducing agent in which of the following reactions:

S1: Be+2 has higher SRP than other alkaline earth metals.
S2: Be+2 has higher hydration energy and greater △aH (atomisation enthalpy) than other alkaline earth metals.

Match List I with List II
LIST I ElementsLIST II Colour imparted to the flame
AK1Brick Red
BCa2Violet
CSr3Apple Green
DBa4Crimson Red
Choose the correct answer from the options given below: 
Match the terms in Column-I with their description in Column-II:
Column-I Column-II
PN2O5 (i)N–N bond
QN2O(ii)N–O–N bond
RN2O4 (iii)N=N / N≡N bond
SNO2(iv)N=O bond
XeF$_4$ reacts with SbF$_5$ to form:
\[ [\text{XeF}_m]^{n+}[\text{SbF}_y]^{z-} \] What is $m+n+y+z$?
If the formula of borax is \(Na_2B_4Ox(OH)y.zH_2O\) , Find the value of x + y + z. 
Number of P-O-P bonds in H3PO4, P4O10, (HPO3)3
Find out difference in oxidation state of Xe in completely Hydrolysed form of XeF4 and XeF6
What is the ratio of σ and pi bonds in pyrophosphoric acid ?
How many of the following have five radial nodes ? 
5s, 6s, 7s, 6p and 4p 
In good quality cement ratio of lime total oxides of Si(SiO\(_2\)), Aluminium(Al\(_2\)O\(_3\)) and Iron(Fe\(_2\)O\(_3\)) should be as close as possible to _____ .

Match the terms in Column-I with their description in Column-II:

 Column-I Column-II (P) N2O5 (i) N–N bond (Q) N2O (ii) N–O–N bond (R) N2O4 (iii) N=N / NN bond (S) NO2 (iv) N=O bond 

For compound having the formula GaCl\(_3\), the correct option from the following is:
Which one among the following metals is the weakest reducing agent?
Total number of acidic oxides among $N_2O_3,NO_2, N_2O,Cl_2O_7,SO_2,CO,CaO,Na_2O$ and NO is ____ .
Mg(NO3)2. XH2O and Ba(NO3)2.YH2O, represent formula of the crystalline forms of nitrate salts. Sum of X and Y is _____________ .
Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R)
Assertion (A) : Boron is unable to form BF63-
Reason (R) : Size of B is very small
In the light of the above statements, choose the correct answer from the options given below:
The oxide which contains an odd electron at the nitrogen atom is
Dinitrogen is a robust compound, but reacts at high altitudes to form oxides. The oxide of nitrogen that can damage plant leaves and retard photosyn-thesis is
Which among the following pairs has only herbicides?
Borazine, also known as inorganic benzene, can be prepared by the reaction of 3-equivalents of "$X$" with 6-equivalents of "Y". "X" and "Y", respectively are :