A non-metal atom form anion by ______...? Mcqs

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A non-metal atom form anion by ______...?

(A) Loses of electrons
(B) Gain of electrons

(C) Loses of protons
(D) Gain of protons

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Which one of the following represents a chemical change_________...?

(A) Sublimation of iodine
(B) Heating a platinum wire in a Bunsen flame

(C) Heating of mercuric oxide powder
(D) Evaporation of alcohol

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The term acid comes from the Latin word ____...?

(A) Acere
(B) Acidos

(C) Acare
(D) Acre

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Which of the following is the most toxic gas...?

(A) Carbon dioxide
(B) Carbon monoxide

(C) Nitrogen
(D) Hydrogen

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It used to assess concentration or amount of given atomic, molecular or ionic chemical...?

(A) Chromatography
(B) Conductometry

(C) Spectroscopy
(D) Potentiometry

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Bees must collect nectar from approximately how many flowers to make 1 pound of Honeycomb....?

(A) 20 million
(B) 1 million

(C) 5 million
(D) None of these

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__________ gas is released when coal is burnes in ln lack of Oxygen...?

(A) Carbon Dioxide
(B) Methane

(C) Ethene
(D) Carbon Monoxide

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Red color of tomato is due to___________...?

(A) Anthocyanin
(B) Xanthophyll’s

(C) Lycopene
(D) None of these

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Which of the following cannot be stored in glass bottle...?

(A) Aqua regia
(B) HF

(C) HCL
(D) HBr

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Snowfall is required from alleviation of mountain ______...?

(A) 36 - 38 degree
(B) 30 - 34 degree

(C) 38 - 40 degree
(D) None of these

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