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

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

The integrated rate equation for first order reaction is A → products

Derive the relation between half life and rate constant for a first order reaction

1.0 x10^-3Kg of urea when dissolved in 0.0985 Kg of a solvent, decreases freezing point of the solvent by 0.211 k. 1.6x10 Kg of another non-electrolyte solute when dissolved in 0.086 Kg of the same solvent depresses the freezing point by 0.34 K. Calculate the molar mass of the another solute. (Given molar mass of urea = 60)

Write one statement of first law of thermodyamics and its mathematical expression.

Write one statement of first law of thermodyamics and its mathematical expression.

Primary and secondary nitroalcanes containing α - H atom show property of -

1. chain isomerism
2. tautomerism
3. optical isomerism
4. geometrical isomerism

Write mechanism of Aldol addition reaction.