List of top Chemistry Questions

Observe the following reaction: \[ {H}_2{O}(s) + {F}_2(g) \rightarrow {HF}(g) + {HOF}(g) \] In this reaction, identify the correct redox changes.

Match the following:

Observe the following reactions
(i) \( 2\text{KClO}_3(s) \xrightarrow{\Delta} 2\text{KCl}(s) + 3\text{O}_2(g) \)
(ii) \( 2\text{H}_2\text{O}_2(aq) \xrightarrow{\Delta} 2\text{H}_2\text{O}(l) + \text{O}_2(g) \)
(iii) \( \text{AgNO}_3(aq) + \text{KCl}(aq) \longrightarrow \text{AgCl}(s) + \text{KNO}_3(aq) \)
(iv) \( 2\text{Na}(s) + \frac{1}{2} \text{O}_2(g) \longrightarrow \text{Na}_2\text{O}(s) \)
The number of redox reactions in this list is

Which of the following is/are ionic in nature?
(i) GeF4
(ii) SnF4
(iii) PbF4

Two statements are given below:
Statement - I: Liquids A and B form a non-ideal solution with positive deviation. The interactions between A and B are weaker than A-A and B-B interactions.
Statement - II: For an ideal solution, \( \Delta H_{\text{mix}} = 0 \), \( \Delta V_{\text{mix}} = 0 \).
The correct answer is

Arrange the following in the increasing order of their magnetic moments
I. \( [\text{Mn(CN)}_6]^{3-} \)
II. \( [\text{MnCl}_6]^{3-} \)
III. \( [\text{Fe(CN)}_6]^{3-} \)
IV. \( [\text{FeF}_6]^{3-} \)

The X formed in the following reaction sequence and its structural type are respectively.

What are X and Y respectively in the following reactions?

At 300 K, the \( E^\ominus_{cell} \) of \[ \text{A(s)} + \text{B}^{2+}(\text{aq}) \rightleftharpoons \text{A}^{2+}(\text{aq}) + \text{B(s)} \] is 1.0 V. If \( \Delta_r S^\ominus \) of this reaction is 100 J K\(^{-1}\), what is \( \Delta_r H^\ominus \) (in kJ mol\(^{-1}\)) of this reaction?
(F = 96500 C mol\(^{-1}\))

The number of alicyclic compounds from the following is: Cyclohexene, Anisole, Pyridine, Tetrahydrofuran, Biphenyl

Which of the following are inner orbital paramagnetic complexes?