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Q:

Methane contributes towards global warming so it is called a _________________ gas.

 

A) poisonous B) carcinogenic
C) infectious D) greenhouse

Answer:   D) greenhouse



Explanation:
Subject: Chemistry
Exam Prep: Bank Exams
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______ bond holds the atoms together within a water molecule.

A) Nonpolar covalent B) Polar covalent
C) Ionic D) Co­-ordinate
 
Answer & Explanation Answer: B) Polar covalent

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Pyrolusite is an ore/mineral of ___________.

A) Mercury B) Manganese
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Answer & Explanation Answer: B) Manganese

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Which of the following elements has the lowest melting point?

A) Iron B) Nitrogen
C) Iodine D) Lead
 
Answer & Explanation Answer: B) Nitrogen

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The Chemical formula of Ammonium chloride is ___________.

A) (NH4)2Cl B) NH4Cl3
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Answer & Explanation Answer: D) NH4Cl

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What chemical is injected into a person's body when an ant bites?

A) Formic Acid B) Acetic Acid
C) Tartaric Acid D) Citric Acid
 
Answer & Explanation Answer: A) Formic Acid

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Which of the following elements has the lowest melting point?

A) Tin B) Hydrogen
C) Carbon D) Sodium
 
Answer & Explanation Answer: B) Hydrogen

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Q:

_____ is the fourth state of matter.

A) Plasma B) Steam
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Answer & Explanation Answer: A) Plasma

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Which of the following is not a Halon gas ?

A) methane B) Carbon tetra chloride
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Answer & Explanation Answer: A) methane

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