Chemistry Mock ...

lodine molecules are held in the crystals lattice by .......

Which of the following statements about amorphous solid is incorrect

A compound is made up of three elements X, Y and Z. X atoms are present at each corner of the unit cell, Y atoms are present on each edge and Z atoms are present in the centre of each face. The formula of the compound is:

At 100℃, copper (Cu) has FCC unit cell structure with cell edge length of x Å. What is the approximate density of Cu (in g cm^-3) at this temperature?

5 mL of N "HCl", 20 mL of N/2 "H2SO4" and 30 mL of N/3 "HNO3" are mixed together and volume made to one litre. The normality of the resulting solution is:

Which of the following compounds has the highest value of Van’t Hoff factor?

An aqueous solution of glucose is 10% in strength. The volume in which 1 g mole of it is dissolved will be

Choose the incorrect statement from the following 

Change required to liberate 11.5 g sodium is

Which is the correct Nernst equation for reaction taking place in the following cell

Mg(s) | Mg2+ (aq) || CI- (aq) | CI2(g) (1 atm)/Pt

Which of the statements about solutions of electrolytes is not correct

Which one of the following statement for order of reaction not correct 

A first order reaction has a specific reaction rate of 10^-2 sec^-1. How much time will it take for 20g of the reaction to reduce to 5g.

In the given graph the activation energy, E_a for the reverse reaction will be 

Pick the appropriate choice about collision theory of reaction rates

When excess of electrolyte is added to a colloid it

The coagulation values in millimoles per litre of the electrolytes used for the coagulation of As₂S₃ are given below

I. (NaCl) = 52

II. (BaCl₂) = 0.69

III, (MgSO₄) = 0.22

The correct order of their coagulating power is:

In Frevndlich Adsorption isotherm, the value of 1/n is

Identify the incorrect statement among the following

HI cannot be prepared by the action of conc. H₂SO₄ on KI because

Which of following is used in the preparation of chlorine

Ammonia forms the complex ion [(Cu(NH₃)₄]²⁺ with copper ions in alkaline solution but not in acidic solution.

When EDTA solution is added to Mg²⁺ ion solution, then which of the following statements is not true

The CFSE for octahedral [CoCl6]4– is 18,000 cm–1. The CFSE for tetrahedral [CoCl4]2– will be (x) ×102 cm–1 the value of x is: 

When 0.1 mol CoCl₃(NH₃)₅ is treated with excess of AgNO_3, 0.2 mol of AgCI are obtained. The conductivity of solution will correspond to

The structural formula of hypophosphorous acid is

Nitric acid can be obtained from ammonia via the formations of the intermediate compounds

Identify the incorrect statement with respect to ozone

Hot conc. H₂SO₄ acts as a moderately strong oxidizing agent. It oxidizes both metals and non-metals. Which of the following element is oxidized by conc. H₂SO₄ into two gaseous products:

Which will undergo S_N² reaction faster 

Replacement of CI of chlorobenzene to give phenol requires drastic conditions but chlorine of 2, 4-dinitrochlorobenzene is readily replaced because 

What will be the product in the following reaction 

Acetyl bromide reacts with excess of CH₃Mgl followed by treatment with a saturated solution of NH₄Cl gives

CH₃CH₂OH can be converted into CH₃CHO by

Phenol and NH₃ reacts in presence of ZnCl₂ at 300° C to produce

When phenol is treated with CHCl₃ and NaOH followed by acidification, salicylaldehyde is obtained. Which of the following species is involved in the above mentioned reaction as intermediates?

An ether is more volatile than an alcohol having the same molecular formula. This is due to

In the following reaction, final product is

The reagent with which both acetaldehyde and acetone react easily is

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

CH₂ = CH(CH₂)₂ COOH and HBr reacts in presence of peroxide to give 

Select the correct statement about a carboxylic acid 

Acid anhydrides on reaction with primary amines give ______

C₃H₉N cannot represent the following

When ethyl amine is treated with methyl magnesium bromide, the product is:

Which of the following reactions of  glucose can be explained only by its cyclic structure

Which enzyme can catalyse the conversion of glucose to ethanol?

Which of the following statement is not correct

Which of the following pair is/are correctly matched?

Select the correct code given below.

Consider the following statements regarding Tranquilizers?

1. It relieves anxiety, stress, irritability or excitement by inducing a sense of well-being.

2. It is a neurologically inactive drug.

Which of the statements given above is/are not correct?