List of top Chemistry Questions

For making distinction between $2$-pentanone and $3$-pentanone the reagent to be employed is
"Electron" is an alloy of
The lock and key model of enzyme action illustrates that a particular enzyme molecule
The effectiveness of an enzyme is affected least by
It is believed that atoms combine with each other such that the outermost shell acquires a stable configuration of $8$ electrons. If stability were attained with $6$ electrons rather than $8$; what would be the formula of the stable fluoride ion?
In the change of $NO \, \to\, NO^+$ the electron is added to
Which of the following reactions will not result in the formation of carbon-carbon bonds ?
The value of electronegativity of /atoms $A$ and $B$ are $1.2$ and $4.0$ respectively. The $\%$ ionic character of the $A - B$ bond is
Aldol condensation does not occur between
Electronic configuration of $ Cu^{ 2 + } $ ion is
Out of $N_2O,SO_2,I_3^+,I_3^- ,H_2O,NO_2^- \, and \, N_3^-$the linear species are
Correct order of bond angles for the following is
Find the organic acid produced from the 11bove reaction
Atoms in a $P_{4}$ molecule of white phosphorus are arranged regularly in the following way :
The oxidant which is used as an antiseptic is :
Chlorobenzene is ...... reactive than benzene towards electrophilic substitution and directs the incoming electrophile to the ...... position.
Which of the following reactions involves carbon-carbon bond formation?
Two ice cubes are pressed over each other until they unite to form one block. Which one of the following forces dominates for holding them together ?
$\left[F e(C N)_{6}\right]^{3-}-$ ion is
Which of the following compounds of chlorine contains both ionic and covalent bonds?
Which of the following hybridisations has planar geometry?
Which among the following is not a borane?
Which of the following displaces $Br _{2}$ from an aqueous solution containing bromide ions?
The. five $d$-orbitals are designated as $d_{x y}, d_{y z}, d_{x z}, d_{x^{2}-y^{2}}$ and $d_{z^{2}}$. Choose the correct statement.
Among $TiF _{6}^{2-}, CoF _{6}^{2-}, Cu _{2} Cl _{2}$ and $NiCl _{4}^{2-}$ which are colourless species?