CUET (UG) entrance exam Question Bank Solutions

Who introduced the term covalent bond?

Which of the following exists as covalent crystals in the solid state?

The covalent bond length is the shortest in which one of the following bonds?

The nature of hybridisation in the ammonia molecule is

Which of the following statements about galvanic cell is incorrect

Oxidation number of carbon in CH₂Cl₂ is

Natural silk is a

In which of the following compounds, the oxidation number of iodine is fractional?

Calculate the angle at which first order reflection will occurs in an X-ray spectrometer when x ~ rays of wavelength \[\ce{1.54 \overset{\circ}{A}}\] are diffracted by the atoms of a crystal given that inter planer distance is \[\ce{0.04 \overset{\circ}{A}}\]

A current of 2.0 ampere passed for 5 hour through a molten salt deposits 22 g of the metal (Atomic mass = 177). The oxidation state of the metal in the metal salt is

Standard reduction electrode potentials of three metals A, B and C are respectively + 0.5 V, – 3.0 V. and – 1.2 V. The reducing powers of there metal is.

Given the data at 25°C

\[\ce{Ag + I- -> AgI + e-}\]; E° = – 0.152 V

\[\ce{Ag -> Ag+ + e-}\]; E° = – 0.800 V

The value of log K_sp for AgI is ______.

Cell reaction is spontaneous when

If the half-cell reaction A + e^– → A^– has a large negative reduction potential, it follow that:-

The correct order of the mobility of the alkali metal ions. In aqueous solultion is

If 0.5 amp current is passed through acidified silver nitrate then in 100 minutes the mass of silver, deposite on cathode is (eq. wt. of silver nitrate + 108).

The role of a catalyst is to change

In the presence of a catalyst, the heat evolved or absorbed during the reaction.

For a reaction A + B → products, the rate law is given by: r = `K[A]^(1/2)`. What is the order of reaction?

For a reaction R → p the concentration of reactant change from 0.03 m to 0.02 m in minute, calculate the average rate of the reaction using the unit of second.