List of top Chemistry Questions asked in KEAM

Which of the following is used in tyre cords ?
Which of the following bonds require the largest amount of bond energy to dissociate the atoms concerned ?
The green house gas is
The types of hybridisation on the five carbon atoms from left to right in the molecule CH$_3-CH=C=CH-CH_3$ are
The relative strengths of trichlorides of boron group to accept a pair of electron is given by
The carbon atoms in calcium carbide are held by
Which hydride amongst the following has the least boiling point?
$NO^{+}$ has bond order
The product formed in the below reaction is
The following reaction is named as
The lattice energy of $NaCl$ is $788 \,kJ \, mol^{-1}$. This means that $788\, kJ$ of energy is required
The hybridization of oxygen atom in $H_2O_2$ is
The electronic configuration of four elements are 1. $ [ Xe ] 6x^1$ 2. $ [ Xe ] 4 f^{ 14} \, 5d^1 \, 6s^2 $ 3. $ [ A r ] 4s^2 \, 4p^5 $ 4. $ [ A r ] 3d^7 \, 4s^2 $ Which one of the following statements about these elements is not correct?
Which of the following is used as a 'morning after pill'?
The bond lengths and bond angles in the molecules of methane, ammonia and water are given below .This variation in bond angle is a result of (i) the increasing repulsion between hydrogen atoms as the bond length decreases (ii) the number of non-bonding electron pairs in the molecule (iii) a non-bonding electron pair having a greater repulsive force than a bonding electron pair
A pure dextrorotatory monocarboxylic acid is treated with racemic mixture of an alcohol containing one chiral carbon. The ester formed will be
If one strand of DNA has the sequence ATGCTTGA, the sequence in the complementary strand would be
Which of the following exists as Zwitter ion?
When a beam of light is passed through a colloidal solution it:
Chemical bond implies
Sodium chloride is an ionic compound whereas hydrogen chloride is mainly covalent because
$B(OH)_3$ is a
Which of the following is not a function of proteins?
The paramagnetic property of the oxygen molecule is due to the presence of unpaired electrons present in
Which is/are weaker acid than water?