(English Medium) ICSE Class 10 - CISCE Question Bank Solutions

State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.

A solution of hydrogen chloride in water is prepared. The following substances are added to separate portions of the solution :

Complete the table by writing the gas evolved in each case and its odour.

Write an equation for the reaction of hydrochloric acid on manganese (IV) oxide.

The acid which does not form acid salt by a basic radical.

State the terms/process for the following:

A type of salt formed by partial replacement of hydroxyl radicals with an acid radical.

Give the structural formula of the following organic compound:

2-chlorobutane

Give the structural formula of the following organic compound:

Methanal

Give the structural formula of the following organic compound:

But-2-yne

Identify the cation in the following case:

Sodium hydroxide solution when added to Solution C gives a white precipitate which is insoluble in excess of sodium hydroxide solution.

The Empirical formula of an organic compound is CHCl₂.

If its relative molecular mass is 168, what is its molecular formula?

[At. Wt. C = 12, H = 1, Cl = 35.5]

State one relevant observation for the following:

To the copper nitrate solution, initially, few drops of sodium hydroxide solution is added and then added in excess.

Calculate:

Write the empirical formula of C₈H₁₈.

Explain the following:

\[\ce{H3PO3}\] is not a tribasic acid.

State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.

Study the flow chart and give balanced equations with conditions for the conversions A, B, C, D, and E.

State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.

State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.

State which of the two - a solution of HCl in water or in toluene is an electrolyte. Explain.

Give the IUPAC name of the organic compound represented by the structural formula given below:

\[\begin{array}{cc}
\ce{H}\phantom{...}\ce{Cl}\phantom{..}\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{H}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\phantom{....}|\\
\ce{H - C - C - C - C - C - H}\\
|\phantom{....}|\phantom{....}|\phantom{....}|\phantom{....}|\\
\ce{H}\phantom{...}\ce{H}\phantom{...}\ce{Cl}\phantom{..}\ce{H}\phantom{...}\ce{H}\end{array}\]

Give the IUPAC name of the organic compound represented by the structural formula given below:

\[\begin{array}{cc}
\phantom{.}\ce{H\phantom{...}H\phantom{...}O}\phantom{..}\\
\phantom{.}|\phantom{....}|\phantom{....}||\phantom{..}\\
\ce{H - C - C - C - OH}\\
\phantom{}|\phantom{....}|\phantom{......}\\
\phantom{}\ce{H\phantom{...}H}\phantom{......}
\end{array}\]