NEET (UG) entrance exam Question Bank Solutions

The major product formed in dehydrohalogenation reaction of 2-Bromo pentane is Pent-2-ene. This product formation is based on ?

The maximum temperature that can be achieved in a blast furnace is ______

The emission spectrum of hydrogen discovered first and the region of the electromagnetic spectrum in which it belongs, respectively are ______.

Diazo-coupling is useful to prepare ______.

The empirical formula of a compound is CH₂O. If its molecular mass is 180, then the molecular formula of the compound is ______. 

The CORRECT increasing order of acidity of the following hydrocarbons is: 

The method not used in metallurgy to refine the impure metal is ______.

Indicate the nature of bonding in diamond.

In van der Waal's equation for the real gas, the expression for the net force of attraction amongst the gas molecules is given by:

The equilibrium constant of a reaction is 300, if the volume of the reaction flask is tripled, the equilibrium constant will be ______.

Vitamin B₆ is known as:

A mixture of benzaldehyde and formaldehyde on heating with 50% NaOH solution gives

An organic compound contains 78% (by wt.) carbon and the remaining percentage of hydrogen. The right option for the empirical formula of this compound is ______ 

[Atomic wt. of C is 12, H is 1]

Choose the correct option for the total pressure (in atm.) in a mixture of 4g \[\ce{O2}\] and 2g \[\ce{H2}\] confined in a total volume of one litre at 0°C is ______.

[Given R = 0.082 L atm mol⁻¹K⁻¹, T = 273 K]

The atomic model based on quantum theory was first proposed by ______.

Avogadro's law distinguishes between ______.

Alkyl cyanides can be obtained from primary acid amides using ______.

Given that:
\[\ce{C + O2 -> CO2; ΔH° = - x {k}J}\]
\[\ce{2CO + O2 -> 2CO2; ΔH° = - y {k}J}\]
The heat of formation of carbon monoxide will be ______.

The equilibrium constant for the reaction: \[\ce{N2_{(g)} + O2_{(g)} ⇌ 2NO_{(g)}}\] is 4 × 10^–4 at 2000 K. In presence of a catalyst, the equilibrium is attained ten times faster. Therefore, the equilibrium constant in presence of catalyst of 2000 K is ______.

Which one of the following has sp³, sp², or sp hybrid orbitals in the ratio 6 : 3 : 2?