In 1869 Mandeleev put forward his periodic law about _____...? Mcqs

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In 1869 Mandeleev put forward his periodic law about _____...?

(A) Atomic Number
(B) Chemical properties

(C) Physical properties
(D) Atomic Mass

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Which of the following is not a part of Darwinism...?

(A) Over production
(B) Natural selection

(C) Inheritance for acquired characters
(D) Competition for survival

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The freezing point depends upon _______...?

(A) Nature of liquid
(B) Pressure

(C) Temperature
(D) Volume

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Which one of the following elements the drum of a Photostat machine is made up of: _________...?

(A) Aluminium
(B) Selenium

(C) Barium
(D) None of these

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Soap and detergents remove the dirt from clothes due to__________...?

(A) Osmosis
(B) Capillary action

(C) Lowering of interfacial tension
(D) Diffusion

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Hepatitis C is a leading cause of_________...?

(A) HIV
(B) Diabetes

(C) Chronic Liver disease
(D) AIDS

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If input of a NOT gate is "1" then its output is _____...?

(A) 1
(B) 0

(C) May be 1 or may be 0
(D) None of these

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The maximum risk to air travel is from...?

(A) Clouds
(B) Rainfall

(C) Fogs
(D) Strong Winds

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The time period of a pendulum when taken to the Moon would...?

(A) remain the same
(B) decrease

(C) become zero
(D) increase

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The respiratory problem common in smokers is______...?

(A) tuberculosis
(B) Emphysema

(C) Asthma
(D) Cancer

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