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IIT JAM Chemistry - MCQ Test 5 - Chemistry MCQ


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30 Questions MCQ Test - IIT JAM Chemistry - MCQ Test 5

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IIT JAM Chemistry - MCQ Test 5 - Question 1

The order of basicity among the following compounds is:         

 

        

IIT JAM Chemistry - MCQ Test 5 - Question 2

The rate of the reaction A → products, at the initial concentration of 3.24 × 10–2 M is nine times its rate at another initial concentration of 1.2 × 10–3 M. The order of the reaction is:

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IIT JAM Chemistry - MCQ Test 5 - Question 3

For the reaction the value of rate of disappearance of   is given as 6.25 × 10–3 mol L–1S–1. The rate of formation of NO2 and O2 is given respectively as:

IIT JAM Chemistry - MCQ Test 5 - Question 4

In the synthesis of ammonia by Haber process, if 60 moles of ammonia is obtained in one hour, then the rate of disappearance of Nitrogen is:

IIT JAM Chemistry - MCQ Test 5 - Question 5

For a first order reaction A → P, the temperature (T) dependent rate constant (k) was found to follow the equation The pre-exponential factor A and the activation energy Ea, respectively, are:

IIT JAM Chemistry - MCQ Test 5 - Question 6

In the case of alkali metals, the covalent character decreases in the order:        

IIT JAM Chemistry - MCQ Test 5 - Question 7

Which of the following does not illustrate the anomalous properties of lithium

IIT JAM Chemistry - MCQ Test 5 - Question 8

On heating anhydrous Na2CO3.........is evolved:        

Detailed Solution for IIT JAM Chemistry - MCQ Test 5 - Question 8

The chemical formula of sodium carbonate (washing soda) is Na2​CO3​. When it is heated it undergoes a thermal decomposition reaction. This takes place above 500 degree C. The reaction of decomposition is Na2​CO3​(s)→Na2​O(s)+CO2​(g)

 The name of the first reaction product Na2​O is Sodium Oxide which is solid and used in glass making and the name of the second reaction product is Carbon Dioxide which is a gas.

IIT JAM Chemistry - MCQ Test 5 - Question 9

Which of the following sulphates have the highest solubility in water:        

IIT JAM Chemistry - MCQ Test 5 - Question 10

The element that does not show catenation among the following p-block elements is:        

IIT JAM Chemistry - MCQ Test 5 - Question 11

A quantity of 0.50 mole of an ideal gas at 20°C expands isothermally against a constant pressure of  2.0 atm from 1.0 L to 5.0 L. Entropy change of the system is:           

IIT JAM Chemistry - MCQ Test 5 - Question 12

Given the molecular formula of the hexa-coordinated complexes (A) CoCl3.6NH3 (B) CoCl3.5NH3   (C) CoCl3.4NH3. If the number of coordinated NH3 molecules in A, B and C respectively are 6, 5 and 4 the primary valency in (A), (B) and (C) are:

Detailed Solution for IIT JAM Chemistry - MCQ Test 5 - Question 12

IIT JAM Chemistry - MCQ Test 5 - Question 13

Ketones react with Mg-Hg over water gives           

IIT JAM Chemistry - MCQ Test 5 - Question 14

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

IIT JAM Chemistry - MCQ Test 5 - Question 15

t1/4 can be taken as the time taken for the concentration of a reactant to drop to 3/4 of its initial value. If the rate constant for a first order reaction is K, the t1/4 can be written as:

IIT JAM Chemistry - MCQ Test 5 - Question 16

The compound that undergoes decarboxylation most readily under mild condition is:

IIT JAM Chemistry - MCQ Test 5 - Question 17

Consider the acidity of the carboxylic acids:

(I) PhCOOH 
(II) o-NO2C6H4COOH 
(III) p-NO2C6H4COOH
(IV) m-NO2C6H4COOH

 Which of the following order is correct:

IIT JAM Chemistry - MCQ Test 5 - Question 18

Starting with one mole of a compound A it is found that the reaction is 3/4th complete in one hour. If the reaction is first order, the rate constant is:           

IIT JAM Chemistry - MCQ Test 5 - Question 19

Find the organic acid produced from the below reaction:

IIT JAM Chemistry - MCQ Test 5 - Question 20

The diketone   on intramolecular aldol condensation gives the final product.

IIT JAM Chemistry - MCQ Test 5 - Question 21

Nitrogen forms how many oxide?           

IIT JAM Chemistry - MCQ Test 5 - Question 22

Which of the following does not have optical isomer           

IIT JAM Chemistry - MCQ Test 5 - Question 23

Which one is not correct:           

IIT JAM Chemistry - MCQ Test 5 - Question 24

Which of the following complex ions is expected to absorb visible light:           

IIT JAM Chemistry - MCQ Test 5 - Question 25

The reaction [Fe(CNS)6]3– → [FeF6]3– takes place with

IIT JAM Chemistry - MCQ Test 5 - Question 26

The crystal field stabilization energy (CFSE) is the highest for:           

Detailed Solution for IIT JAM Chemistry - MCQ Test 5 - Question 26

Higher the oxidation state of the metal, greater the crystal field splitting energy . In options (a), (b) and (d), Co is present in +2+2 oxidation state and in (c ) it is present in +3+3 oxidation state and hence has a higher value of CFSE.

IIT JAM Chemistry - MCQ Test 5 - Question 27

The product X is           

IIT JAM Chemistry - MCQ Test 5 - Question 28

An optically active compound having molecular formula C8H16 on ozonolysis gives acetone as one of       the products. The structure of the compound is:

IIT JAM Chemistry - MCQ Test 5 - Question 29

The major organic product formed from the following reaction:

IIT JAM Chemistry - MCQ Test 5 - Question 30

For the redox reaction

The correct coefficients of the reaction for the balanced reaction are:

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