What is the temperature of “Liquid Nitrogen”...? Mcqs

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What is the temperature of “Liquid Nitrogen”...?

(A) 0 °C
(B) 37 °C

(C) – 196 °C
(D) None of these

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Solid can be converted directly to the gaseous state. This process is known as:...?

(A) Sublimation
(B) Evaporation

(C) Condensation
(D) Diffusion

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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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Cooking gas is also called...?

(A) Butane
(B) Hexane

(C) Propane
(D) LPG

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Which of the following gases is used for refrigeration...?

(A) Chlorine
(B) Ammonia

(C) Phosphine
(D) Carbon Dioxide

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Which one of the following acid is used in car’s battery...?

(A) Hydrochloric acid
(B) Hydrofluoric acid

(C) Sulfuric acid
(D) Nitric acid

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What was the deadline of Kyoto Protocol for CO₂ limit upto 5,86% from 1990s to:...?

(A) 2020
(B) 2004

(C) 2012
(D) None of these

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splitting of water into hydrogen and oxygen is an example of ______...?

(A) Evaporation
(B) Condensation

(C) Decomposition
(D) Sublimation

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Which Muslim scientist is considered to be the founder of chemistry___...?

(A) Jabir bin Hayan
(B) Al Beroni

(C) Yaqoob Alkandi
(D) None

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What is the study of fossils called...?

(A) Paleontology
(B) Archaeology

(C) Geology
(D) Anthropology

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