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

Write the expression of K_c for the following chemical reaction.

\[\ce{N2O4(g) ⇌ 2NO_2{(g)}}\]

Differentiate irreversible and reversible reaction.

Explain Reversible reaction.

Choose the correct option.

The missing particle from the nuclear reaction is ____________

\[\ce{^27_13Al + ^4_2He -> ? + ^1_0n}\]

Choose the correct option.

The radioactive isotope used in the treatment of Leukemia is ______.

Calculate the binding energy per nucleon of \[\ce{^84_36Kr}\] whose atomic mass is 83.913 u. (Mass of neutron is 1.0087 u and that of H atom is 1.0078 u).

Explain the following.

The elements Li, B, C, Be and N have the electronegativities 1.0, 2.0, 1.5, and 3.0, respectively on the Pauling scale.

Choose the correct option.

Which of the following compound has the highest boiling point?

Choose the correct option.

Acidic hydrogen is present in _______.

Choose the correct option.

The major product of chlorination of ethyl benzene is _______.

Choose the correct option.

Identify 'A' in the following reaction:

\[\begin{array}{cc}
\ce{CH3 - C = CH2 ->[A] CH3 - C - CH3 + CO2 + H2O}\\|\phantom{...................}||\phantom{..............}\\
\ce{CH3}\phantom{................}\ce{O}\phantom{..............}
\end{array}\]

Choose the correct option.

1-Chloropropane on treatment with alc. KOH produces _______.

Name the following:

The type of hydrocarbon that is used as a lubricant.

Name the following:

Alkene used in the manufacture of polythene bags.

Name the following:

What are the main natural sources of alkane?

Arrange the three isomers of alkanes with molecular formula C₅H₁₂ in increasing order of boiling points and write their IUPAC names.

Write IUPAC names of the products obtained by the reaction of cold concentrated sulphuric acid followed by water with the following compound.

but-l-ene

Write a balanced chemical reaction for the preparation of ethane from Ethyl bromide.

Write a balanced chemical reaction for the preparation of ethane from Ethyl magnesium iodide.

How many monochlorination product is possible for 2-methylpropane? Draw their structures and write their IUPAC names.