PUC Science 2nd PUC Class 12 - Karnataka Board PUC Question Bank Solutions

In a reaction between A and B, the initial rate of reaction (r₀) was measured for different initial concentrations of A and B as given below:

What is the order of the reaction with respect to A and B?

Which of the ores mentioned can be concentrated by magnetic separation method?

Differentiate between “minerals” and “ores”.

Write the formula for the given coordination compound:

Iron (III) hexacyanoferrate (II)

Sleeping pills are recommended by doctors to the patients suffering from sleeplessness but it is not advisable to take its doses without consultation with the doctor, Why?

With reference to which classification has the statement, ‘ranitidine is an antacid” been given?

Why do we need to classify drugs in different ways?

Explain the term target molecules or drug targets as used in medicinal chemistry.

Why should not medicines be taken without consulting doctors?

Define the term chemotherapy.

Classify the following as primary, secondary and tertiary alcohol:

\[\begin{array}{cc}
\ce{CH3}\phantom{.}\\
|\phantom{....}\\
\ce{CH3 - C - CH2OH}\\
|\phantom{....}\\
\ce{CH3}\phantom{.}
\end{array}\]

Identify allylic alcohols in the following examples.

Give the structures and IUPAC names of monohydric phenols of molecular formula C₇H₈O.

Classify the following as primary, secondary and tertiary alcohol:

H₂C = CH – CH₂OH

Classify the following as primary, secondary and tertiary alcohol:

CH₃ – CH₂ – CH₂ – OH 

Classify the following as primary, secondary and tertiary alcohol:

Classify the following as primary, secondary and tertiary alcohol:

Classify the following as primary, secondary and tertiary alcohol:

Write the structure of 3-methyl butanal

What happens if external potential applied becomes greater than E°cell of electrochemical cell?