NSO Level 1- Science Olympiad (SOF) Class 9: Questions 787 - 791 of 1128

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Question 787

Question

MCQ▾

Atoms of different elements with same mass number but different atomic numbers are called

Choices

Choice (4)Response

a.

Ions

b.

Isotopes

c.

Isobars

d.

All of the above

Question 788

Question

MCQ▾

Arrange the following elements according to their atomic mass

Carbon, hydrogen, oxygen, magnesium

Choices

Choice (4)Response

a.

Hydrogen, carbon, oxygen, magnesium

b.

Carbon, hydrogen, oxygen, magnesium

c.

Hydrogen, oxygen, carbon, magnesium

d.

Oxygen, hydrogen, carbon, magnesium

Question 789

Question

MCQ▾

Select the odd one out

Choices

Choice (4)Response

a.

Plasma membranes contain chitin sugar in plants

b.

The movement of water across a semi permeable is affected by the amount of substances dissolved in it.

c.

Molecules soluble in organic solvents can easily pass through the membrane

d.

Membranes are made of organic molecules like proteins and lipids.

Question 790

Question

MCQ▾

Group the given figure into three classes using each figure only once.

Group of the Figure into Classes

Choices

Choice (4)Response

a.

b.

c.

d.

Question 791

Question

MCQ▾

Displacement of an object in unit time is called its

Choices

Choice (4)Response

a.

Retardation

b.

Acceleration

c.

Velocity

d.

Speed

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