HSC Science (Computer Science) इयत्ता १२ वी - Maharashtra State Board Question Bank Solutions for Chemistry

Which steps are involved in the manufacture of potassium dichromate from chromite ore?

Answer the following

Balance the following equation

\[\ce{K2Cr2O7 + Kl + H2SO4 -> K2SO4 + Cr2(SO4)3 + 7H2O + 3l2}\]

Answer the following in one or two sentences.

Mention two applications of coordination compounds.

Which of the following statements is applicable for 0.1 M urea solution and 0.1 M sucrose solution?

What are hypertonic solutions?

Observe the following compounds and answer the questions given below.

      (I)

\[\ce{\underset{\text{(II)}}{CH3 - CH2 - Br}}\]

1. Identify the type of halides.
2. Explain the nature of the C – Br bond in both of these halides.
3. Which of these compounds will undergo aqueous alkaline hydrolysis readily? Write the reaction in support of your answer.

Explain the osmotic pressure of a solution with the help of a thistle tube.

Explain the phenomenon of osmosis.

Define Osmosis.

What is substituted imine called?

Write the potential produced through the NICAD storage cell.

Mercury battery provides more constant voltage than any other dry cell: Explain.

Explain aldol condensation reaction in detail.

Why is Nickel-cadmium cell referred to as a secondary cell?

Write working of NICAD storage cell. Also write its applications.

Effect of catalyst in a chemical reaction is to change the _______.

Sulfur dioxide reacts with sodium hydroxide solution to form _______.

The number of lone pairs of electrons present in ClF₅:

Draw structure and name the shape of bromine trifluoride.

Explain the trend in the following atomic properties of group 16 elements:

Electron gain enthalpy