HSC Science (Computer Science) 11th Standard - Maharashtra State Board Question Bank Solutions for Chemistry

Solve problem:

In two moles of acetaldehyde (CH₃CHO) calculate the number of moles of hydrogen

Solve problem:

In two moles of acetaldehyde (CH₃CHO) calculate the number of moles of oxygen

Solve problem:

In two moles of acetaldehyde (CH₃CHO) calculate the number of molecules of acetaldehyde

Choose the correct option:

When two properties of a system are mathematically related to each other, the relation can be deduced by

Choose the correct option.

Which technique is widely used in industry to separate components of the mixture and also to purify them?

Select and write the most appropriate alternatives from the given choices.

Which molecule is linear?

Select and write the most appropriate alternatives from the given choices.

Which of the following is true for CO₂?

Select and write the most appropriate alternatives from the given choices.

Which O₂ molecule is paramagnetic. It is explained on the basis of ______.

Draw an orbital diagram of Hydrogen fluoride molecule

BF₃ molecule is planar but NH₃ pyramidal. Explain.

Arrange the following compounds on the basis of lattice energies in decreasing (descending) order:

BeF₂, AlCl₃, LiCl, CaCl₂, NaCl

Give the total number of electrons around sulfur (S) in SF₆ compound.

What are the interacting forces present during the formation of a molecule of a compound?

Why is O₂ molecule paramagnetic?

How does the change of pressure affect the value of the equilibrium constant?

For the equilibrium,\[\ce{BaSO_4 (g) ⇌ Ba^{2+} (aq) + SO^{2-}_4 (aq)}\]. State the effect of Addition of Ba²⁺ ion.

For the equilibrium.

\[\ce{BaSO_4 (g) ⇌ Ba^{2+} (aq) + SO^{2-}_4 (aq)}\] state the effect of Removal of \[\ce{SO^{2-}_4}\] ion.

For the equilibrium. \[\ce{BaSO_4 (g) ⇌ Ba^{2+} (aq) + SO^{2-}_4 (aq)}\] state the effect of Addition of BaSO₄(s) on the equilibrium.

State and explain Le Chatelier’s principle suitably with reference to change in temperature.

State and explain Le Chatelier’s principle suitably with reference to change in concentration.