NEET (UG) entrance exam Question Bank Solutions

The activation energy in a chemical reaction is defined as ______.

Shape selective catalysis is a reaction catalysed by ______.

Purification of crude metals by removing metallic and non-metallic impurities is known as ______ of metals.

Which of the following species has bond angle less than 98°?

For a reversible reaction, if the concentrations of the reactants are doubled, then the equilibrium constant value ______.

Heavy water is used in atomic reactor as

Arrange the following alkyl halides in decreasing order of the rate of ~ elimination reaction with alcoholic KOH:

1. \[\begin{array}{cc}
   \ce{H}\phantom{...}\\
   |\phantom{...}\\
   \phantom{}\ce{CH3 - C - CH2Br}\\
   |\phantom{...}\\
   \ce{CH3}\phantom{}
   \end{array}\]
2. CH₃ – CH₂ – Br
3. CH₃ – CH₂ – CH₂ – Br

What is the oxidation number of Fe in Fe(CO)₅?

Which one of the following methods can be used to obtain highly pure metal which is liquid at room temperature?

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

The correct sequence of bond enthalpy of the ‘C–X’ bond is ______.

The slope of Arrhenius Plot `("In"  "k"  "v"//"s" 1/"T")` of first-order reaction is −5 × 10³ K. The value of E_a of the reaction is. Choose the correct option for your answer. [Given R = 8.314 JK⁻¹mol⁻¹]

The correct sequence of bond enthalpy of the ‘C–X’ bond is ______

If the density of a solution is 3.12 g mL^–1, the mass of 1.5 mL solution in significant figures is ______.

Arenes on treatment with chlorine in presence of ferric chloride as a catalyst undergo what type of reaction?

Which of the following is biodegradable polymer?

The enthalpy change accompanying the formation of one mole of a compound from its elements, all the substance being in their standard states, is called as ______.

Hydrogen peroxide is obtained by the electrolysis of ______. 

Which of the following will happen when a little hydrogen peroxide is added to a solution of ferrous sulphate? 

In a reversible reaction, a catalyst: