Which of the following is a positively charged particle emitted by a radioactive element...? Mcqs

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Which of the following is a positively charged particle emitted by a radioactive element...?

(A) Beta Rays
(B) Alpha Rays

(C) Gamma Rays
(D) None of these

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Deficiency of Vitamin-A results in __________...?

(A) Night blindness
(B) rickets

(C) scurvy
(D) hair fall

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The green pigment present in leaves is called...?

(A) Chloroplast
(B) Chromoplast

(C) Chlorophyll
(D) None

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Which of the following diagram shows atoms are bonded with same electronegativity...?

(A) A -----:----- B
(B) A ----------: B

(C) A :---------- B
(D) A --:-------- B

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Which metal is called “metal of hope”...?

(A) Uranium
(B) Titanium

(C) Gold
(D) Platinum

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Which statement is incorrect about solution...?

(A) The solution is a homogeneous mixture
(B) In a solution the particles of solute and solvent are mixed

(C) The solution is a heterogeneous mixture
(D) The colour and appearance are same in every part of the solution

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Which one is a vector quantity...?

(A) Mass
(B) Weight

(C) Time
(D) Temperature

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Which of these is ‘escapism’...?

(A) an extreme sport
(B) a vintage fasion style

(C) a dangerous adventure
(D) mental diversion from unpleasant or boring aspects of daily life

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Who created periodic table...?

(A) Faraday
(B) Lavoisier

(C) Arrhenius
(D) Mendeleev

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Fog that most often forms as warm rain falls into a cold layer of surface air is called ______________...?

(A) Radiation fog
(B) Evaporation (mixing) fog

(C) Advection fog
(D) Upslope fog

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