List of top Chemistry Questions

The mixture of concentrated $HCl$ and $HNO _{3}$ made in $3: 1$ ratio contains

$ \text{O}_{2}^{2-} $ is the symbol of...... ion.

The noble gas used in atomic reactors is:

What is the number of free electrons present on each carbon atom in graphite?

The chemical formula of zeolite is

Which one of the following expressions represent the electron probability function ?

Identify the electronic configuration of transition element.

In the reaction $2 A+B \rightarrow A_{2} B$, if the concentration of $A$ is doubled and that of $B$ is halved, then the rate of reaction will

Which of the following is not an amino acid?

The Arrhenius equation expressing the effect of temperature on the rate constant of a reaction is

For which of the following reactions, $K_{p}=K_{c} ?$

Ostwald dilution law is applicable to

If the half-time for a particular reaction is found to be constant and independent of the initial concentration of the reactants, then the reaction is of

Which of the following is a non-colligative property?

Normality of $2 MH _{2} SO _{4}$ is

How will increase of pressure affect the equation? $C(s)+H_{2} O(g) C O(g)+H_{2}(g)$

In acidic medium, dichromate ion oxidises ferrous ion to ferric ion. If the gram molecular weight of potassium dichromate is 294 g, its gram equivalent weight is ...... g.

Which one of the following compounds forms a red coloured solution on treatment with neutral $ \text{FeC}{{\text{l}}_{\text{3}}} $ solution ?

Temperature coefficient of a reaction is 2. When temperature is increased from 30$^\circ$C to 100$^\circ$C, rate of the reaction increases by

The concentration of electrolyte required to coagulate a given amount of $As_2S_3$ sol. is minimum in the case of :

Which one of the following reagents will reduce diethyl ether to ethane and ethanol?

An alkaline solution of...... and citrate ions is called:

The temperature dependence of rate constant (k) of a chemical reaction is written in terms of Arrhenius equation, $k = A.e ^{- E ^{*} / RT }$. Activation energy $\left( E ^{*}\right)$ of the reaction can be calculated by plotting

Which of the following salts is most soluble?

The volume of water to be added to N/2 HCl to prepare $500 cm^3$ of N/10 solution is