Science Content (CTET Paper-II Science): Questions 79 - 83 of 148

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Question number: 79

» Science Content » Basic Chemistry

Appeared in Year: 2011

MCQ▾

Question

When an iron nail is dipped in copper sulphate solution, the colour of copper sulphate solution fades and a brownish layer is deposited over the iron nail. This is an example of (June)

Choices

Choice (4) Response

a.

Decomposition reaction

b.

Double displacement reaction

c.

Combination reaction

d.

Displacement and redox reactions

Question number: 80

» Science Content » World of Living

Appeared in Year: 2013

MCQ▾

Question

Which of the following pairs is related to the inheritance of characters? (July)

Choices

Choice (4) Response

a.

Cell membrane and chloroplast

b.

Chromosomes and genes

c.

Cell membrane and cell wall

d.

Chromosomes and mitochondria

Question number: 81

» Science Content » How Things Work

Appeared in Year: 2011

MCQ▾

Question

In which of the following cases of motion, are the distance moved and the magnitude of displacement equal? (Jun)

Choices

Choice (4) Response

a.

A car moving on a straight road

b.

A car moving in a circular path

c.

A pendulum oscillating to and fro

d.

The Earth revolving around the Sun

Question number: 82

» Science Content » Basic Chemistry

Appeared in Year: 2011

MCQ▾

Question

The inner surfaces of food cans are coated with tin and not with zinc because (June)

Choices

Choice (4) Response

a.

Zinc is more reactive than tin

b.

Zinc is costlier than tin

c.

Zinc has a higher melting point than tin

d.

Zinc is less reactive than tin

Question number: 83

» Science Content » Moving Things

Appeared in Year: 2011

MCQ▾

Question

A feather weighing 5 gm and a nail weighing 10 gm have the same kinetic energy. Which of the following statements is true about the momentum of the two bodies? (June)

Choices

Choice (4) Response

a.

The lighter body will have higher momentum

b.

It is not possible to compare the momentum of two objects

c.

The heavier body will have higher momentum

d.

The lighter body and heavier body will have equal momentum

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