NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 1236 - 1239 of 1258

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Question number: 1236

» Basic Concepts in Chemistry » Matter and Its Nature

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Appeared in Year: 2014

MCQ▾

Question

Which of the following compounds will undergo racemisation when solution of KOH hydrolyses? (AIPMT)

(i)

Image shows Hydrolyses (i)

Image Shows Hydrolyses (I)

Image shows Hydrolyses (i)

(ii)

(iii)

Image shows Hydrolyses (ii)

Image Shows Hydrolyses (Ii)

Image shows Hydrolyses (ii)

(iv)

Image shows Hydrolyses (iv)

Image Shows Hydrolyses (Iv)

Image shows Hydrolyses (iv)

Choices

Choice (4) Response

a.

None of the above

b.

(ii) and (iv)

c.

(i) and (ii)

d.

(i) and (iv)

Question number: 1237

» Redox Reactions & Electrochemistry » Redox Reactions

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MCQ▾

Question

The standard reduction potentials at for the following half reactions are given against each

Which is the strongest reducing agent?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 1238

» Redox Reactions & Electrochemistry » Electrochemical Cells

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MCQ▾

Question

Which of the following statements are true for the electrochemical Daniel cell?

(1) Electrons flow from copper electrode to zinc electrode

(2) Current flows from zinc electrode to copper electrode

(3) Cations move toward copper electrode which is cathode

(4) Cations move toward zinc electrode

Choices

Choice (4) Response

a.

1 and 3

b.

2 and 4

c.

2 and 3

d.

1 and 2

Question number: 1239

» Redox Reactions & Electrochemistry » Electronic Concepts of Oxidation and Reduction

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Assertion-Reason▾

Question

Assertion (Ꭺ)

A negative value of standard reduction potential means that reduction take place on this electrode with reference to standard hydrogen electrode.

Reason (Ꭱ)

The standard electrode potential of a half cell has a fixed value.

Choices

Choice (4) Response

a.

Both Ꭺ and Ꭱ are false

b.

Ꭺ is false but Ꭱ is true

c.

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

d.

Ꭺ is true but Ꭱ is false