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

Write the chemical composition of cryolite.

Mention two important functions of nucleic acids.

Complete the following reaction giving major product.

\[\begin{array}{cc}
\ce{CH3}\phantom{.................}\\
|\phantom{...................}\\
\ce{CH3 - C - CH2 - Cl ->[Na/dry either]  A}\\
|\phantom{...................}\\
\ce{CH3}\phantom{.................}
\end{array}\]

Identify the chiral molecule from the following.

CH₂OH-CO-(CHOH)₄-CH₂OH is an example of ______.

Identify the chiral molecule from the following.

Self-cleansing windows are example of the ______.

In the reaction A + 3B → 2C, the rate of formation of C is ______.

Explain why the anode is of negative polarity in a galvanic cell.

What is the product A obtained in the following reaction?

\[\ce{XeF6 + H2O ->[Partial][Hydrolysis] \underline{}\underline{}\underline{}\underline{} + \underline{}\underline{}\underline{}\underline{}}\]

\[\ce{XeF4 + H2O - \underline{}\underline{}\underline{}\underline{} + \underline{}\underline{}\underline{}\underline{}}\]

Define Lewis bases and Lewis acids with respect to a coordination compound.

______ noble gas does not occur in the atmosphere.

Define the rate of a reaction.

Write the name of reactants used for the preparation of ethyl-tert-butyl ether.

Calculate magnetic moment of a divalent cation of an element for which atomic number is 24.

Name the scientist who coined Green Chemistry concept.

Explain the term instantaneous rate of a reaction.

What is an electrochemical cell? What does it consist of?