In modern periodic table, how many periods are there...? Mcqs

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In modern periodic table, how many periods are there...?

(A) 7
(B) 8

(C) 9
(D) 6

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Most asteroids orbit the sun in a region called the asteroid belt between...?

(A) Mars and Jupiter
(B) Jupiter and Saturn

(C) Mercury and Neptune
(D) Venus and Uranus

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Rate of evaporation of petrol is greater than that of water at room temperature because:...?

(A) petrol molecules do not have any hydrogen bond
(B) petrol is an organic compound

(C) water molecules have small size
(D) petrol molecules have greater size

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Parkinson is a disease of_________...?

(A) Lungs
(B) Eyes

(C) Brain
(D) Bones

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An abnormally great desire for food, excessive eating is called...?

(A) Dysphagia
(B) Bulimia nervosa

(C) Phagia
(D) None of the above

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Our atmosphere consists of___________ Oxygen approximately...?

(A) 11% Oxygen approximately
(B) 21% Oxygen approximately

(C) 31% Oxygen approximately
(D) None of these

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In what year did Galileo first use an optical telescope to study the moon...?

(A) 1492
(B) 1609

(C) 1212
(D) 1743

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Part of earth where life exists is called ______...?

(A) Lithosphere
(B) Atmosphere

(C) Biosphere
(D) Hydrosphere

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Which one of the following non-metals is not a poor conductor of electricity...?

(A) Sulphur
(B) Selenium

(C) Bromine
(D) Phosphorus

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BTU is a unit of________...?

(A) Force
(B) Magnetic flux

(C) Energy
(D) None of these

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