Chemistry Mock ...

A ferromagnetic substances become a permanent magnet when it is placed in magnetic filed because.......

Which of the following is not true about the ionic solids

The packing efficiency of the face centered cubic (fcc), body centered cubic (bcc), and simple / primitive cubic (pc) lattices follows the order

Two solutions of HCl, A and B, have concentrations of 0.5 N and 0.1 N respectively. The volume of solutions A and B required to make 2 litres of 0.2 N HCl are

If P0 and P are the vapour pressure of the pure solvent and solution and n1 and n2 are the moles of solute and solvent respectively in the solution then the correct relation between P and P0 is

If at cubic cell, atom A presents all corners and atom B at the centre of each face, What will be the molecular formula of the compounds, if all the atoms present on the body diagonal are replaced by atom C

The Van't Hoff factor i for a 0.2 molal aqueous solution of urea is

Then during electrolysis of solution of AgNO_3, 9650 coulombs of charge pass through the electroplating bath, the mass of silver deposited in the cathode will be

Consider an endothermic reaction x → Y with the activation energies E_b and E_f for the backward and forward reactions, respectively, in general 

A secondary cell is one which

The standard reduction potential for Fe²⁺ / Fe and Sn²⁺ / Sn electrodes are -0.44 and -0.14 volt respectively. For the given cell reaction Fe²⁺ + Sn → Fe + Sn²⁺, the standard EMF is

Which among the following is a false statement?

Consider the following relations for emf of a electrochemical cell

In a reaction 2A + B → A₂B, the reactant A will disappear at

The value of rate constant of a pseudo first order reaction ______

An endothemic reaction A → B has an activation energy 15 kcal/mole and energy of reaction 5 kcal/mole. The activation energy of the reaction B → A is 

The initial rate, \(- \frac{{d\left[ A \right]}}{{dt}}\)at t = 0 was found to be 2.6 × 10^-2 mol L^-1s^-1 for the reaction A + 2B → Products The initial rate, \( - \frac{{d\left[ B \right]}}{{dt}}\), at t = 0 is 

The correct structure of ethylenediaminetetraacetic acid (EDTA) is

The forces acting between noble gas atoms are

Which of the following statements is not true

A metal, M forms chlorides in its +2 and +4 oxidation states. Which of the following statements about these chlorides is correct

Which of the following is a neutral complex

The IUPAC name of [Co(NH₃)₆]CI₃ is

The three important oxidation states of Phosphorus are:

Strong reducing behaviour of H₃PO₂ is due to:

Acidity of diprotic acids in aqueous solutions increases in the order

Which is CORRECT for glycine amino acid?

Which of the following fluorides of Xenon is impossible 

In which of the following pairs both the complexes show optical isomerism

The order of rate of hydrolysis of alkyl halides 1°, 2°, 3° and CH₃X by the S_N² pathway is

 A. Compound A is 

Which of the following will give yellow precipitate on shaking with an aqueous solution of NaOH followed by acidification with dil. HNO₃ and addition of AgNO₃ solution 

IUPAC name of m-cresol is

The product obtained from the following reaction is

The end product 'C' in the following series of reaction is

C₂H₅Br   \(\xrightarrow{Aqueous\ NaOH}\) A \(\xrightarrow{Na}\) B \(\xrightarrow{CH_3l}\) C

Which of the following gas is evolved when ethanol reacts with sodium?

Which of the following does not give hydrocarbon on reaction with soda lime?

Salicylic acid is subjected to bromination using Br₂ water, product formed is

Increasing pK_a values of o-, m- and p- nitrobenzoic acid is 

The major product of the following reaction is:

\({\rm{C}}{{\rm{H}}_3}{\rm{CH}} = {\rm{CHC}}{{\rm{O}}_2}{\rm{C}}{{\rm{H}}_3} \xrightarrow[]{\text{LiAlH}_4}\)

Select the incorrect statement about alkoxy mercuration - demercuration of alkenes

Aldehyde group can be protected 

Crossed Cannizzaro reaction can be given by which of the following combination?

Which of the following statements is not true about Cannizzaro reaction?

RNH₂ + CHCl₃ + KOH \(\mathop \to \limits^\Delta \)?

The product of above reaction is:

When primary amines are treated with acid chlorides, we get:

Methyl - α - D - glucoside and methyl - β - D - glucoside are

The correct statement in respect of protein haemoglobin is that it

The number of peptide bonds in the compound is

Starch-containing food changes colour when it comes in contact with iodine solution. What is the colour it changes to?