HSC Science (Electronics) 12th Standard Board Exam - Maharashtra State Board Question Bank Solutions

The concept that aims to maximize efficiency and minimize hazardous effect on human health and environment was coined by Paul T. Anastas.

Write chemical reactions for the following conversions:

Ethyl bromide to ethene.

On which electrode the oxidation reaction takes place?

The allylic halide, among the following, is ______.

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.

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.