HSC Science (General) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions for Chemistry

Write the sign convention of work done during expansion of gas.

Henry's constant for \[\ce{CH3Br_{(g)}}\] is 0.159 mol dm⁻³ bar⁻¹ 25°C. Calculate its solubility in water at 25°C, if its partial pressure is 0.164 bar.

Convert the following :

cumene to phenol.

The half-life period for the first order reaction is 1.7 hrs. How long will it take for 20% of the reactant to disappear?

Write preparation of propanone by using ethanoyl chloride and dimethyl cadmium.

Write preparation of propanone by using ethanoyl chloride and dimethyl cadmium.

What is the action of hydrochloric acid on the NH₃?

What is the action of hydrochloric acid on \[\ce{Na2CO3}\]?

What is the action of hydrochloric acid on the following NH₃?

What is the action of hydrochloric acid on Na₂CO₃?

What is the action of hydrochloric acid on the \[\ce{NH3}\]?

What is the action of hydrochloric acid on \[\ce{Na2CO3}\]?

What is the action of hydrochloric acid on NH₃?

What is the action of hydrochloric acid on Na₂CO₃?

What is the action of hydrochloric acid on NH₃?

What is the action of hydrochloric acid on Na₂CO₃?

What is the action of hydrochloric acid on \[\ce{NH3}\]?

What is the action of hydrochloric acid on \[\ce{Na2CO3}\]?

What is the action of hydrochloric acid on \[\ce{NH3}\]?

What is the action of hydrochloric acid on \[\ce{Na2CO3}\]?