HSC Science (General) ११ वीं कक्षा - Maharashtra State Board Question Bank Solutions

Give the test that is used to detect borate radical is qualitative analysis.

Ammonia is a good complexing agent. Explain.

Give the reactions supporting basic nature of ammonia.

A compound is prepared from the mineral colemanite by boiling it with a solution of sodium carbonate. It is white crystalline solid and used for inorganic qualitative analysis.

Write the reaction that explains its formation.

What is meant by the molar volume of a gas?

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Calculate the number of moles of hydrogen in 0.448 litre of hydrogen gas at STP.

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A student used a carbon pencil to write his homework. The mass of this was found to be 5 mg. With the help of this calculate the number of moles of carbon in his homework writing.

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A student used a carbon pencil to write his homework. The mass of this was found to be 5 mg. With the help of this calculate The number of carbon atoms in 12 mg of his homework writing

In two moles of acetaldehyde \[\ce{CH3CHO}\] calculate the number of moles of carbon.

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

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

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

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

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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?

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

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Which of the following is true for CO₂?

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