NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 702 - 705 of 1258

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Question number: 702

» Organic Compounds with Oxygen » Preparation, Properties and Reactions and Uses

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MCQ▾

Question

Alcohols

(i) CH3CH2CH2OH, (ii) CH3- CHOH - CH3 and

(iii) CH3 - C (CH3) (OH) - CH3 were treated with Lucas reagent (Cone. HCl + ZnCl2).

What results do you expect at room temperature?

Choices

Choice (4) Response

a.

(iii) reacts immediately, (ii) reacts in about 5 minutes and (i) not at all

b.

(i) reacts immediately, (ii) reacts in about 5 minutes and (iii) not at all

c.

(ii) and (iii) react immediately and (i) in about 5 minutes

d.

(i) reacts in about 5 minutes, (ii) reacts in about 15 minutes and (iii) not at all

Question number: 703

» Surface Chemistry » Colloidal State » Coagulation

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Appeared in Year: 2016

MCQ▾

Question

The coagulation values in millimoles per liter 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

Choices

Choice (4) Response

a.

III > II > I

b.

III > I > II

c.

I > II > III

d.

II > I > III

Question number: 704

» Organic Compounds with Halogens » Preparation, Properties and Reactions

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Appeared in Year: 2016

MCQ▾

Question

Consider the reaction:

This reaction will be the fastest in:

Choices

Choice (4) Response

a.

Methanol

b.

Water

c.

Ethanol

d.

N, N’-dimethylformamide (DMF)

Question number: 705

» Solutions » Molarity

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Appeared in Year: 2016

MCQ▾

Question

The solubility of AgCl (s) with solubility product 1.6 × 10–10 is in 0.1 M NaCl solution would be

Choices

Choice (4) Response

a.

1.6 × 10–11 M

b.

Zero

c.

1.6 × 10–9 M

d.

1.26 × 10–5 M