BITSAT (Birla Institute of Technology & Science Admission Test) Chemistry: Questions 174 - 178 of 180

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Question 174

Question

Assertion-Reason▾

Assertion(Ꭺ)

1-Butene on reaction with HBr in presence of a peroxide produces 1-bromobutane.

Reason(Ꭱ)

It involves the free radical mechanism

Choices

Choice (4)Response

a.

Both Ꭺ and Ꭱ are false

b.

Both Ꭺ and Ꭱ are true and Ꭱ is the correct explanation of Ꭺ

c.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

d.

Ꭺ is false but Ꭱ is true

Passage

DIRECTIONS: Read the passage given below and answer the questions that follows:

Representation of me chemical change in terms of symbol and formulae of the reactants & products is called a chemical equation.

Information conveyed by a chemical equation

(1) Qualitatively, a chemical equation tells us the names of the various reactants

(2) Quantitatively, it expresses

(a) The relative number of molecules of reactants and products

(b) The relative number of moles of reactants and products

(c) The relative masses of reactants and products

(d) The relative volumes of gaseous reactants and products

Limiting Reagent: It may be defined as the reactant which is completely consumed during the reaction is called limiting reagent-

Question 175 (1 of 3 Based on Passage)

Measurable Properties of Gases

Question

MCQ▾

Calculate the volume of at STP that will be displaced by of Zn when it is completely dissolved in dilute Sulphuric acid.

Choices

Choice (4)Response

a.

b.

c.

d.

Question 176 (2 of 3 Based on Passage)

Measurable Properties of Gases

Question

MCQ▾

Calculate the mass of oxygen required to burn completely-

Choices

Choice (4)Response

a.

b.

c.

d.

Question 177 (3 of 3 Based on Passage)

Measurable Properties of Gases

Question

MCQ▾

of liquid carbon disulphide (specific gravity ) is burnt in oxygen. Find the volume of the resulting gases measured at STP.

Choices

Choice (4)Response

a.

.

b.

.

c.

.

d.

.

Question 178

Question

Assertion-Reason▾

Assertion(Ꭺ)

One mole of contains double the number of molecules present in one mole of .

Reason(Ꭱ)

Molecular weight of is double to that of .

Choices

Choice (4)Response

a.

Ꭺ is false but Ꭱ is true

b.

Ꭺ is true but Ꭱ is false

c.

Both Ꭺ and Ꭱ are false

d.

Both Ꭺ and Ꭱ are true but Ꭱ is NOT the correct explanation of Ꭺ

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