Chemistry Mock ...

The arrangement ABC ABC ABC ....... is referred as

Which one of the following is an example of a positively charged sol?

The incorrect statement for C₆₀ is

An ionic compound has a unit cell consisting of A ions at the corners of a cube and B ions at the centers of the faces of the cube. The empirical formula for this compound would be

In an enzyme solution, sucrose undergoes fermentation. If 0.10 mol/L solution of sucrose is reduced to 0.05 mol/L in 10 hours and to 0.025 mol/L in 20 hours, then the rate constant of the reaction will be 

The pH when 1 mL of 13.6 M HCI is diluted with water to give 300 mL of solution is closest to (Given: log 9 = 0.95; log 2 = 0.3010)

A certain current liberated 0.504 g of hydrogen in 2 hours. How many grams of copper can be liberated by the same current flowing for the same time in a copper sulphate solution

The order of equivalent conductances at infinite dilution of LiCl, NaCI and KCI is

A current 2.0 A is passed for 5 hours through a molten metal salt deposits 22 g of metal (At. wt. = 177). The oxidation state of metal in the salt is

In the electrolytic cell, flow of electrons is from

On electrolysis a solution of dilute of dilute H₂SO₄ between platinum electrodes, the gas evolved at the anode is

The edge lengths of the unit cells in terms of the radius of spheres constituting fcc, bcc and simple cubic unit cells are respectively .......

The solid NaCl is bad conducotor of electricity since

The half life period of a first order chemical reaction is 6.93 minutes. The time required for the completion of 99% of the chemical reaction will be:

In Langmuir model of isotherm, the adsorption of a gas on a solid surface is:

The molar conductance (in S m²mol^-1) at infinite dilution (∧° _m) for Ba(OH)₂ is 

(Given: ∧° _{m (NaOH)} = 248.1 × 10^-4 S m²mol^-1; ∧° _{m (NaCl)} = 126.5 × 10^-4 S m²mol^-1; ∧° m(BaCl₂) = 280.0 × 10^-4 S m²mol^-1)

Physical adsorption is

A gas undergoes physical adsorption on a surface and follows the given Freundlich adsorption isotherm equation

\(\frac{x}{m} = {\rm{k}}{{\rm{p}}^{0.5}}\)

Bromine water reacts with SO₂ to form

HBr and HI reduce sulphuric acid, HCI can reduce KMnO₄ and HF can reduce 

The correct electronic configuration of Xe is 

Which of the following formula is wrong for the mononuclear coordination entities mentioned below?

Which one of the following orders is not accordance with the properly stated against it

In sodium nitroprusside, Na₂[Fe(CN)₅ ON]

Select correct statement regarding [AlCl(H₂O)₅]Cl₂:

In case of Nitrogen, NCl₃ is possible but not NCl₅, whereas in case of P, PCl₃ as well as PCl₅ is possible, this is because:

Which one of the following reactions of Xenon compounds is not feasible

Which of the following statements is incorrect?

The electron affinity while moving from left to right in period

Which of the following statements is correct?

Which of the following is most acidic?

Which of the following is most acidic  in nature?

The number of different substitution products formed when ethane is allowed to react with bromine in sunlight is:

The condensation of hexamethylenediamine and adipic acid gives

The reaction of toluene with chlorine in FeCl₃ gives predominantly:

Select the correct option for the product(s) obtained on nitration of aniline using nitric acid, sulphuric acid (both concentrated) at 288K.

 and can be distinguished by

The correct structure of pyran is

Which of the following compound is optically active?

Which of the following alkyl halides is most reactive in Williamson synthesis?

In the following reaction,

Aldehyde + Alcohol \(\mathop \to \limits^{{\rm{HCl}}}\)Acetal

Aldehyde      Alcohol

HCHO          ^tBuOH

CH₃CHO      MeOH

Ethyl benzene on oxidation by KMnO₄ forms which of the following products?

Given below are two statements, one is labelled as Assertion (A) and the other as Reason (R):

Assertion (A): Antibiotic resistance occurs naturally.

Reason (R): The misuse of antibiotics in humans and animals is making antibiotics less effective.

Select the correct answer using the codes given below.

The major product obtained in the following reaction is:

The aldol condensation of acetaldehyde results in the formation of:

The formation of cyanohydrin from a ketone is an example of:

Galvanization is the process of coating a metal with -

Which of the following is most often used in the food industry as a chemical leavening agent in baked foods such as cakes, muffins and cookies?

Cyclohexanone reacts with diazomethane to produce ______.

Select the correct statement(s).