Science (English Medium) इयत्ता १२ - CBSE Question Bank Solutions for Chemistry

The formula of the complex dichloridobis (ethane –1, 2-diamine) platinum(IV) nitrate is ______.

Write the IUPAC name of the following:

[Co(NH₃)₅(ONO)]²⁺

Write the IUPAC name of the following:

K₂[NiCl₄]

Complete the following ionic equation:

\[\ce{Cr2O^{2-}7 + 2OH^- ->}\]

When D-glucose reacts with HI, it forms ______.

In the two tetrahedral structures of dichromate ion, ______.

Which of the following would not be a good choice for reducing nitrobenzene to aniline?

Calculate the emf of the following cell at 298 K:

Fe_(s) | Fe²⁺ (0.01 M) | | H⁺ (1 M) | H_2(g) (1 bar) Pt_(s)

Given \[\ce{E^0_{cell}}\] = 0.44 V.

Give the reaction of glucose with hydrogen cyanide. Presence of which group is confirmed by this reaction?

Give a reason for the following observations:

Penta-acetate of glucose does not react with hydroxylamine.

Amides can be converted into amines by the reaction named ______.

Assertion (A): The half-life of a reaction is the time in which the concentration of the reactant is reduced to one-half of its initial concentration.

Reason (R): In first-order kinetics, when the concentration of reactant is doubled, its half-life is doubled.

Complete the reaction mentioning all the products formed:

\[\ce{2KMnO4 ->[\Delta]}\]

Complete the reaction mentioning all the products formed:

\[\ce{Cr2O^{2-}7 + 3H2S + 8H^+ ->}\]

Which of the following ions will have a magnetic moment value of 1.73 BM.

\[\ce{Sc^3+, Ti^3+, Ti^2+, Cu^2+, Zn^2+}\]

What is the effect of temperature on the solubility of glucose in water?

Indicate the steps in the preparation of \[\ce{K2Cr2O2}\] from chromite ore.

Indicate the steps in the preparation of \[\ce{K2Cr2O7}\] from chomite ore.

Indicate the steps in the preparation of \[\ce{K2Cr2O7}\] from chromite ore.

Indicate the step in the preparation of K₂Cr₂O₇ from chromite ore.