List of top Chemistry Questions asked in KEAM

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 neopentyl halide in ethanol yields alkenes by $E1$ mechanism due to

Which of the following is the least basic amine?

Consider the following compounds 1. $(NH_4)_2Cr_2O_7$ 2. $NH_4NO_2$ 3. $NH_4 VO_3$ 4. $NH_4 NO_3$ Which compound(s) yield nitrogen gas upon heating?

Which among the following statements are correct? (i) Carbon monoxide is neutral whereas $ S0_3 $ is acidic (ii) Potassium oxide is basic whereas nitrous oxide is acidic (iii) Aluminium and zinc oxides are amphoteric (iv) Sulphur trioxide is acidic whereas phosphorus pentoxide is basic (v) Carbon dioxide is netural whereas sulphur dioxide is amphoteric

The compound ${[Pt(NH3)2Cl2]}$ can exhibit

The compound that undergoes dehydration very easily is

At $ 25{}^\circ C, $ at 5% aqueous solution of glucose (molecular weight $ =180\,g\,mo{{l}^{-1}} $ ) is isotonic with a 2% aqueous solution containing and unknown solute. What is the molecular weight of the unknown solute?

Which of the following is not in green house gas?

Which one of the following pairs consists of only paramagnetic species?

Which one of the following has the smallest bond angle ?

An odd electron molecule among the following is

Which of the following is paramagnetic with bond order $ 0.5 $ ?

The organic compound with two asymmetric carbon atoms is

The change in potential of the half-cell $Cu^{2+}|Cu$, when aqueous $Cu^{2+}$ solution is diluted $100$ times at $298 \,K$ ? $\left( \frac{2.303 RT}{F} = 0.06 \right)$

The number of lone pair and bond pair of electrons on the sulphur atom in sulphur dioxide molecule are respectively

The standard electrode potentials of $ A{{g}^{+}}/Ag $ is $ +0.80\text{ }V $ and $ C{{u}^{+}}/Cu $ is $ +0.34\text{ }V $ . These electrodes are connected through a salt bridge and if:

Aluminium (atomic mass = $27$) crystallizes in a cubic system with edge length of $4 \, ?$. Its density is $2.7 \,g \,cm^{-3}$. The number of aluminium atoms present per unit cell is

The molecular geometry of $BF_3$ is

Sangers reagent is used for the identification of:

1 mole of $FeSO_4$ (atomic weight of Fe is $55.84 \, g \, mol^{-1}$) is oxidized to $Fe_2(SO_4)_3$. Calculate the equivalent weight of ferrous ion

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

An alloy of transition metal containing a non transition metal as a constituent is

Propanal on reaction with dilute sodium hydroxide forms:

Ethylene glycol reacts with excess of $PCl_5$ to give