List of top Chemistry Questions asked in KEAM

Portland cement does not contain

When $H_2$ and $CO$ are reacted in the presence of $Cu$ catalyst, the product/s obtained is/are

Adsorption is accompanied by

Ammonium ion $\left( NH _{4}^{+}\right)$ reacts with nitrite ion $\left( NO _{2}^{-}\right)$ in aqueous solution according to the equation $NH _{4}^{+}(a q)+ NO _{2}^{-}(a q) \longrightarrow N _{2}(g)+2 H _{2} O (l)$ The following initial rates of reaction have been measured for the given reactant concentrations. Which of the following is the rate law for this reaction?

The crystal field splitting energy for octahedral $(\Delta_0)$ and tetrahedral $(\Delta_t) $complexes is related as

In the reaction,$2KMnO_4 + 16 HCl \rightarrow 5Cl_2 + 2MnCl_2 + 2KCl+8H_2O $ reduction product is

Which of the following ions has the same number of unpaired electrons as those present in $V^{3+}$?

Gd$(64)$ has _____ unpaired electrons with sum of spin _____

Some carboxylic acids and their $IUPAC$ names are given below. Which of the following is not correctly matched?

An atom with high electronegativity has

Among the transition metals of 3d series, the one that has the highest negative $M^{2+} /M$ standard electrode potential is

The number of primary, secondary, tertiary and quaternary carbons in neopentane are respectively

The values if ?H and ?S for the reaction C(graphite) + CO(g) ?2CO(g) Are 170 kJ and 170 JK-1 respectively. The reaction will be spontaneous only a

The product/s formed when diborane is hydrolysed is/are

Sea weeds are an important source of

The rate of forward reaction is two times that of the reverse reaction at a given temperature and identical concentration, K equilibrium is

Syngas is a mixture of

Carbohydrates are stored in human body as the polysaccharide

Vitamin A is called

In a reaction, $2A \rightarrow$ products the concentration of A decreases from $0.50 \,M$ to $0.38 \,M$ in $10 \,min$. What is the rate of the reaction (in $Ms^{-1}$) during this interval?

Chronic chloroform exposure may cause damage to liver and kidney, due to the formation of

$Al_2(SO_4)_3$ is used in the following but not

Consider the following statements concerning $N_2H_4$ 1. It is an exothermic compound 2. It burns in air with the evolution of heat 3. It has kinetic stability 4. In reduces $Fe^{3+}$ to $Fe^{2+}$ in acidic medium Which of the following combination is correct?

In a first order reaction 80% of the reactant at an instant was reduced to 8% in 4606 seconds. The rate constant of the reaction is

In the adsorption of a gas on solid, Freundlich isotherm is obeyed. The slope of the plot is zero. Thus, the extent of adsorption is