NEET (NTA)-National Eligibility cum Entrance Test (Medical) Chemistry: Questions 963 - 969 of 1258

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Question number: 963

» Equilibrium » Equilibrium Constants (Kp and Kc)

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MCQ▾

Question

. If the observed pressure for the above reaction at equilibrium is 1.12 atm at 380 K, what is the equilibrium constant of the reaction?

Choices

Choice (4) Response

a.

0.3136

b.

1.89

c.

1.26

d.

0.425

Question number: 964

» Equilibrium » Ionic Equilibrium » pH Scale

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MCQ▾

Question

Find the pH of a 0.002N acetic acid solution if it is ionized at given detection?

Choices

Choice (4) Response

a.

4.3

b.

5.3

c.

7.3

d.

6.3

Question number: 965

» Classification of Elements & Periodicity » Ionization Enthalpy

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MCQ▾

Question

Lowest ionization enthalpy in periods is shown by?

Choices

Choice (4) Response

a.

Alkali metals

b.

Halogens

c.

Alkaline earth metals

d.

Inertgases

Question number: 966

» Equilibrium » Ionic Equilibrium » Acids and Bases (Arrhenius, Brnsted - Lowry and Lewis)

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MCQ▾

Question

According to Lewis concept, a base is a substance which?

Choices

Choice (4) Response

a.

Combines with ions

b.

Produces hydronium ions

c.

Accepts an electron pair

d.

Donates an electron pair

Question number: 967

» Purification & Characteristics of Organic Compounds » Qualitative Analysis

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MCQ▾

Question

On heating 0.32g of an organic composed with concentrated nitric acid and barium chloride, 0.932g barium sulphate was obtained, calculate the percentage of sulphur in the given compound?

Choices

Choice (4) Response

a.

36%

b.

22%

c.

28%

d.

40%

Question number: 968

» Equilibrium » Ionic Equilibrium » Buffer Solutions

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MCQ▾

Question

The of a buffer Solution of 0.1 M and is?

Choices

Choice (4) Response

a.

8.10

b.

5.40

c.

6.82

d.

4.745

Question number: 969

» Equilibrium » Ionic Equilibrium » Acids and Bases (Arrhenius, Brnsted - Lowry and Lewis)

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MCQ▾

Question

According to Arrhenius concept, base is a substance that?

Choices

Choice (4) Response

a.

Donates electrons

b.

Accepts electrons

c.

Given ions in solution

d.

Given ions in solution