HSC Science (General) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions for Chemistry

What is oxidation state of sulphur in the following?

Peroxymonosulfuric acid

Explain the following reaction with a suitable example.

Gatterman reaction

Write three physical properties of sulfuric acid.

Write three uses of sulfuric acid.

Explain the following reaction with a suitable example.

Sandmeyer reaction

Draw the structure of chloric acid.

Draw the structure of chlorous acid.

Complete and write the following table.

Which kind of isomerism is possible for a complex [Co(NH₃)₄Br₂]Cl?

What is linkage isomerism? Explain with an example.

Show that for a first order reaction half life is independent of initial concentration.

The standard potential of the cell in the following reaction is ______.

\[\ce{Cd_{(s)} + Cu^{2+}_{(1M)} -> Cd^{2+}_{(1M)} + Cu_{(s)}}\]

`("E"_("Cd")^circ = - 0.403V, "E"_("Cu")^circ = 0.334V)`

Write the name of isomerism in the following complexes:

[Cu(NH₃)₄] [PtCl₄] and [Pt(NH₃)₄] [ CuCl₄]

What is the action of following on ethyl bromide:

Na in dry ether

What is the action of following on ethyl bromide?

\[\ce{Mg}\] in dry ether

Write chemical reactions for the following conversions:

Bromobenzene to toluene.

The formula for the Grignard's reagent is ______.

Draw geometric isomers of the following complex.

Geometrical isomers of Pt(NH₃)₂Cl₂

Write the structure of HClO₄.

Answer the following in one or two sentences.

What is the standard cell potential for the reaction?

\[\ce{2Al(s) + 3Ni^{2⊕}(1M) -> 2Al^{3⊕}(1 M) + 3Ni(s)}\]

if \[\ce{E{^{\circ}_{Ni}}}\] = −0.25 V and \[\ce{E{^{\circ}_{Al}}}\] = −1.66 V?