Which is the first element depicted on the Periodic Table...? Mcqs

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Which is the first element depicted on the Periodic Table...?

(A) Hydrogen
(B) Aluminum

(C) Oxygen
(D) Gold

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What is called laughing gas...?

(A) Nitrous Oxide
(B) Nitric Oxide

(C) Nitrogen Oxide
(D) Nitrogen Peroxide

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Which of the following is used in normal pencils...?

(A) Graphite
(B) Silicon

(C) Charcoal
(D) Slate

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Cooking gas is also called...?

(A) Butane
(B) Hexane

(C) Propane
(D) LPG

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A matter can exist in which of the following forms...?

(A) Liquid
(B) Solid

(C) Gas
(D) All of these

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Which gas can be ventilated buildings accumulated in poorly...?

(A) Xenon
(B) Hydrogen

(C) Radon
(D) Helium

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Hypothermia is caused by exposure to...?

(A) Extreme Cold
(B) Extreme Heat

(C) Excessive radiation
(D) None of these

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اوزون لیئر کو سب سے ذیادہ نقصان کون سا مادہ کرتا ہے۔۔۔؟

(A) سلفر
(B) زنگ

(C) ہائیڈروجن
(D) کاربن

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Which gas is used in refrigerators for cooling...?

(A) Chlorofluorocarbon
(B) Nitrogen

(C) Helium
(D) Tetrafluoroethene

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Nitrogen boils at a temperature of:...?

(A) -96 °C
(B) -196 °C

(C) -296 °C
(D) -310 °C

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