a ≠ b ≠ c, α ≠ β  ≠γ ≠90° is representation of crystal system:-

In group V-A the  most electronegative element is:-

The first acid known to man was

The oxidation number of chromium In K₂Cr₂O₇ is

Absolute zero is equal to:-

Benzene is stable than ethene because it has:-

Ketones on reduction produce:-

_____ reacts with H2 in dark:-

The benzene ring is oxidized to maleic anhydride when strongly heated with:-

Which is correct about atomic emission spectroscopy:-

In β- elimination reaction, nucleophile attacks on:-

Which is used at the tip of the match sticks:-

The technique which measures the reflectance of a solution is called:-

Which of the following gas is more ideal at STP:-

Which of the following is the weakest acid:-

Which one is used for etching of glass:-

The component which shows maximum affinity for stationary will have:-

Which has zero dipole moment:-

Which is not a derivative of NH3:-

____ don't give cannizzaro's reaction:-

Calcium sulphaide has water of crystallization

At equilibrium the rate of forward and reverse reaction becomes :

Atomic size of sodium atom is:

In the cement manufacture, the digestor revolves at R.P.M:-

CH₃-O_CH₃ is called ___?