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

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Arrange the three isomers of alkane with malecular formula \[\ce{C5H12}\] in increasing order of boiling points and write their IUPAC names. 

[15] Hydrocarbons
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Arrange the three isomers of alkane with malecular formula \[\ce{C5H12}\] in increasing order of boiling points and write their IUPAC names.

[15] Hydrocarbons
Chapter: [15] Hydrocarbons
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How many monochlorination products are possible for 2-methylbutane ? Draw their structures and write their IUPAC names.

[15] Hydrocarbons
Chapter: [15] Hydrocarbons
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Write the balanced chemical reaction for preparation of ethane from Ethyl bromide.

[15] Hydrocarbons
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Write the balanced chemical reaction for preparation of ethane from Ethyl magnesium iodide.

[15] Hydrocarbons
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How many monochlorination products are possible for 2-methylpropane? Draw their structures and write their IUPAC names.

[15] Hydrocarbons
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Explain the following.

Standard reduction potential of alkali metals have high negative values.

[8] Elements of Group 1 and 2
Chapter: [8] Elements of Group 1 and 2
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Explain the following.

Sodium dissolves in liquid ammonia to form a solution which shows electrical conductivity.

[8] Elements of Group 1 and 2
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Explain the following.

BeCl2 is covalent while MgCl2 is ionic.

[8] Elements of Group 1 and 2
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Explain the following.

Alkaline earth metals have low values of electronegativity; which decreases down the group.

[8] Elements of Group 1 and 2
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Explain the following.

Lithium floats and water while sodium floats and catches fire when put in water.

[8] Elements of Group 1 and 2
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Write a balanced chemical equation for the following.

\[\ce{CO2}\] is passed into a concentrated solution of NaCl, which is saturated with \[\ce{NH3}\].

[8] Elements of Group 1 and 2
Chapter: [8] Elements of Group 1 and 2
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Write a balanced chemical equation for the following.

A 50% solution of sulphuric acid is subjected to electrolyte oxidation and the product is hydrolysed.

[8] Elements of Group 1 and 2
Chapter: [8] Elements of Group 1 and 2
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Write a balanced chemical equation for the following.

Magnesium is heated in air.

[8] Elements of Group 1 and 2
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Write a balanced chemical equation for the following.

Beryllium oxide is treated separately with aqueous HCl and aqueous NaOH solutions.

[8] Elements of Group 1 and 2
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Answer the following question.

Describe the diagonal relationship between Li and Mg with the help of two illustrative properties.

[8] Elements of Group 1 and 2
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Answer the following question.

A water sample, which did not give lather with soap, was found to contain \[\ce{Ca(HCO3)2}\] and \[\ce{Mg(HCO3)2}\]. Which chemical will make this water give lather with soap? Explain with the help of chemical reactions.

[8] Elements of Group 1 and 2
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Name the following.

Alkali metal with smallest atom.

[8] Elements of Group 1 and 2
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Name the following.

The most abundant element in the universe.

[8] Elements of Group 1 and 2
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Name the following.

Radioactive alkali metal.

[8] Elements of Group 1 and 2
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