2
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
Q:

In known elements, the maximum number is of

A) Metals B) Non Metals
C) Metalloids D) None of these
 
Answer & Explanation Answer: A) Metals

Explanation:
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56 14197
Q:

 A mixture of sand and naphthalene can be separated by

A) Fractional distillation B) Sublimation
C) Chromatography D) Any of them
 
Answer & Explanation Answer: B) Sublimation

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87 20585
Q:

Which is the Lightest of all the metals?

A) Hydrogen B) Lithium
C) Sodium D) Pottasium
 
Answer & Explanation Answer: B) Lithium

Explanation:

Lithium is the lightest of all the metals due to its low atomic number among meetals

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4 3886
Q:

Which of the following is the mixture

A) distilled water B) gasoline
C) liquified petroleum gas D) both (b) & (c)
 
Answer & Explanation Answer: D) both (b) & (c)

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3 3851
Q:

The M.K.S. system was first introduced by

A) archimedes B) Eienstein
C) Newton D) Giorgi
 
Answer & Explanation Answer: D) Giorgi

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93 18942
Q:

Which one of the following laws directly expalins the law of coservation of mass

A) Hund's rule B) Dalton's law
C) Avogadro's law D) Berzelius hypothesis
 
Answer & Explanation Answer: C) Avogadro's law

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8 4232
Q:

Dimond is

A) an element B) a compound
C) a mixture D) a liquid
 
Answer & Explanation Answer: A) an element

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3 3285
Q:

Whcih one is the compound in the following

A) mercury B) ozone
C) air D) ammonia
 
Answer & Explanation Answer: C) air

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4 3416