HSC Science (General) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions for Chemistry

Derive the relation pH + pOH = 14.

Define pH.

Define pOH.

Define pOH.

Complete the following reaction giving major product.

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

Complete the following reaction giving major product.

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

Derive the relation pH + pOH = 14.

Define the following term: 

pH

Define the following term:

pOH

Write the formula to determine the molar mass of a solute using freezing point depresssion method.

Write mathematical equation of first law of thermodynamics for the following processes :
Adiabatic process.

Write mathematical equation of first law of thermodynamics for the following processes :
Adiabatic process.

Write the mathematical equation of the first law of thermodynamics for an isochoric process.

Write the mathematical equation of the first law of thermodynamics for an isochoric process.

How is 1-nitropropane prepared from suitable oxime?

How are  2 - nitropropane prepared from suitable oxime?

Write the reaction for the preparation of Nylon-6.

Write the reactions involved in dehydration of 1°, 2° and 3° alcohols.

How are 1 - nitropropane, 2-nitropropane and 2-methyl 2- nitropropane are distinguished from each other using nitrous acid?

Phenelzine is used as an

(a)  analgesic                      

(b) antiseptic

(c) antipyretic

(d) antidepressant