Science (English Medium) इयत्ता ११ - CBSE Question Bank Solutions for Chemistry

How would you explain the following observation?

 BaO is soluble but BaSO₄ is insoluble in water.

How would you explain the following observation?

LiI is more soluble than KI in ethanol.

Indicate the σ and π bonds in the following molecules:

C₆H₆

Indicate the σ and π bonds in the following molecules:

C₆H₁₂

Indicate the σ and π bonds in the following molecules:

CH₂Cl₂

Write bond line formulas for Isopropyl alcohol.

Write bond line formulas for 2,3-Dimethyl butanal.

Write bond line formulas for Heptan-4-one.

Give condensed and bond line structural formulas and identify the functional group(s) present, if any, for:

2,2,4-Trimethylpentane

Give condensed and bond line structural formulas and identify the functional group(s) present, if any, for

2-Hydroxy-1,2,3-propanetricarboxylic acid

Give condensed and bond line structural formulas and identify the functional group(s) present, if any, for

Hexanedial

How can the production of dihydrogen, obtained from ‘coal gasification’, be increased?

Discuss the consequences of high enthalpy of H–H bond in terms of chemical reactivity of dihydrogen.

Arrange the following:

H–H, D–D and F–F in order of increasing bond dissociation enthalpy.

Write the Formulae for the Following Compound:

Nickel(II) Sulphate

Write formulas for the following compound:

Tin(IV) oxide

Write the formulae for the following compound:

Thallium(I) sulphate

Write the Formulae for the Following Compound:

Iron(III) Sulphate

Write the Formulae for the Following Compound:

Chromium(III) Oxide

Using the standard electrode potential, predict if the reaction between the following is feasible:

Fe³⁺(aq) and I^–(aq)