Chemistry Test-...

According to Raoult's law the relative lowering of vapour pressure of a solution of volatile substance is equal to:

The \(Cu ^{2+}\) ion concentration in a copper-silver electrochemical cell is \(0.1 M\). If \(E ^{\circ}\left( \frac{Ag ^{+}}{Ag} \right)=0.8 V\), \(E ^{\circ}\left( \frac{Cu ^{2+}}{Cu} \right)=0.34 V\), and Cell potential \(\left(\right.\) at \(\left.25^{\circ} C \right)=0.422 V\), find the silver ion concentration:

The decreasing order of standard electrode potential of \(Mg , K , B a\) and \(Ca\) is:

Direction:The following questions consist of two statements, one labelled as Assertion and the other Reason. Examine both the statements carefully and mark the correct choice according to the instructions given below.

Assertion:Mists are non-viable particulates produced by particles of spray liquids and by condensation of vapours in air.

Reason:Herbicides and insecticides that miss their targets travel through air and form mists.

The oxidation of oils or fats in a food isknown as:

What is known as Autooxidation?

Which among the following elements cannot be turned into wire?

Rain is called acid rain when its pH is below:

\(\left(\frac{\partial \mathrm{H}}{\partial \mathrm{P}}\right)_{\mathrm{T}}\) for an ideal gas is equal to:

Which of the following enzyme was first isolated and purified in the form of crystals?