List of top Chemistry Questions on Inorganic chemistry

Statement-I : The correct increasing order of bond length among the following is $O_2^+ < O_2 < O_2^- < O_2^{2-}$.
Statement-II : The correct order of number of unpaired electrons is $O_2^{2-} < O_2^+ < O_2^- < O_2$.
Statement-I : The correct order of Ionization energy is $Na > Mg > Al > Ar$
Statement-II : Among the following elements $Sc, Ca$ and $Mg, Ca$ has highest $3^{rd}$ Ionisation Energy.
Cation of salt A when treated in flame gives apple green colour. When salt A is heated with Chromate solution gives yellow precipitate & when salt is heated with conc $HNO_3$ & Ammionium molybdate it gives canary yellow ppt. Salt A contains :
Given $K_{SP}(Ag_2C_2O_4) = 32X$, $K_{SP}(AgBr) = 4Y$. Find ratio of solubility of the given salts in pure water
In the following reaction, \[ {MnO4^{2-} \xrightarrow{H^+} \, ?} \] Manganate ion undergoes disproportionation to form:
Statement-I : \(\mathrm{KMnO_4}\) is a good reducing agent.
Statement-II : \(\mathrm{KMnO_4}\) reduces nitrite, oxalate and iodide ions.
What is Lanthanoid contraction? What are the causes and effects of Lanthanoid contraction?
Give the electronic configuration of Ce⁴⁺ and Co²⁺.
Mention the type of hybridisation in the following compounds:
(a) BrF₅ (b) BrF₃
Which of the following statements is incorrect?
The stability of +1 oxidation state increases in the sequence .
XeF₆ on complete hydrolysis produces:
On heating a mixture of common salt and \( K_2Cr_2O_7 \) in equal amount along with concentrated \( H_2SO_4 \) in a test tube, a gas is evolved. Formula of the gas evolved and oxidation state of the central metal atom in the gas respectively are :
Given below are two statements :
Statement I : The correct order in terms of atomic/ionic radii is \( Al>Mg>Mg^{2+}>Al^{3+} \).
Statement II : The correct order in terms of the magnitude of electron gain enthalpy is \( Cl>Br>S>O \).
In the light of the above statements, choose the correct answer from the options given below :
Given below are some of the statements about Mn and \( Mn_2O_7 \). Identify the correct statements.
A. Mn forms the oxide \( Mn_2O_7 \), in which Mn is in its highest oxidation state.
B. Oxygen stabilizes the Mn in higher oxidation states by forming multiple bonds with Mn.
C. \( Mn_2O_7 \) is an ionic oxide.
D. The structure of \( Mn_2O_7 \) consists of one bridged oxygen.
Choose the correct answer from the options given below :
Find the number of P–O–P (pyrophosphate) bonds present in $P_4O_8$.
The magnetic behavior of a compound with all electrons paired is:
Consider the following statements:

[(A)] \(\mathrm{KMnO_4}\) is diamagnetic while \(\mathrm{K_2MnO_4}\) is paramagnetic.
[(B)] Manganate ion contains \(\mathrm{Mn^{6+}}\) while permanganate ion contains \(\mathrm{Mn^{7+}}\).
[(C)] \(\mathrm{Mn^{2+}}\) ion on reaction with \(\mathrm{S_2O_8^{2-}}\) ions gives manganate ion.
[(D)] Both \(\mathrm{MnO_4^-}\) and \(\mathrm{MnO_4^{2-}}\) are tetrahedral.
Correct statements are:

Given below are two statements: 
Statement I: All the pairs of molecules \((\mathrm{PbO}, \mathrm{PbO_2}); (\mathrm{SnO}, \mathrm{SnO_2})\) and \((\mathrm{GeO}, \mathrm{GeO_2})\) contain amphoteric oxides. 
Statement II: \(\mathrm{AlCl_3}, \mathrm{BH_3}, \mathrm{BeH_2}\) and \(\mathrm{NO_2}\) all have incomplete octet. 
In the light of the above statements, choose the correct option.

Nature of compounds TeO₂ and TeH₂ is___________ and ______________respectively.

Atomic numbers of three elements \(E_1, E_2\) and \(E_3\) of periodic table are \(Z_1, 50\) and \(Z_2\) respectively. From the position of the elements shown in figure, the value of \((Z_2 - Z_1)\) is

Match the following: 

List-1 (Element)List-2 (Block)
A: CdI: f-block
B: EuII: s-block
C: SeIII: d-block
D: BaIV: p-block
Polymer X is an example of polyester and Y is an example of polyamide. X and Y are respectively
Sulphur dioxide on reaction with chlorine in the presence of charcoal gives compound (A). This on reaction with white phosphorus gives SO\(_2\) and compound (B). The correct statement about 'B' is
In which of the following transition metal ion (aquated) is not correctly matched with its colour?