Chemistry (NTSE Stage-1 (State-Level) Scholastic-Aptitude & Language Comprehension): Questions 104 - 107 of 144

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Question number: 104

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

Electron-dot structure of F2 molecule is

Choices

Choice (4) Response

a.

Electron dot structure of F2 – Choice A

Electron Dot Structure of F2 – Choice A

Explaining the electron dot structure of Fluorine

b.

Electron dot structure of F2 – Choice B

Electron Dot Structure of F2 – Choice B

Explaining the electron dot structure of Fluorine

c.

Electron dot structure of F2 – Choice C

Electron Dot Structure of F2 – Choice C

Explaining the electron dot structure of Fluorine

d.

Electron dot structure of F2 – Choice D

Electron Dot Structure of F2 – Choice D

Explaining the electron dot structure of Fluorine

Question number: 105

» Chemistry » Carbon and Its Compounds

MCQ▾

Question

In a buck minster fullerene, the number of carbon atoms joined in its spherical molecule, are

Choices

Choice (4) Response

a.

Forty

b.

Seventy

c.

Fifty

d.

Sixty

Question number: 106

» Chemistry » Structure of Atom

MCQ▾

Question

A compound ‘X’ has two carbon atoms having an alcoholic functional group attached to it. It is obtained by the fermentation. It is known as absolute alcohol. Identify ‘X’.

Choices

Choice (4) Response

a.

Butanol

b.

Ethanol

c.

Methanol

d.

Propanol

Question number: 107

» Chemistry » Physical and Chemical Changes

MCQ▾

Question

Kanchan takes Cu, Fe, Zn and Al pieces separately in four test tubes labelled as I, II, III and IV respectively. She adds 10 mL of freshly prepared FeSO4 solution to each test tube and observes the color of the metal residue in each case.

Test tubes with different mixtures in it.

Test Tubes With Different Mixtures in It.

Find the color of metals which are in test tubes

She would observe a black residue in the test tubes.

Choices

Choice (4) Response

a.

I and III

b.

III and IV

c.

II and IV

d.

I and II

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