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:

Which one of the following substances does not have a melting point

A) bromine B) sodium chloride
C) mercury D) glass
 
Answer & Explanation Answer: D) glass

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68 19848
Q:

Which one of the following mixture is homogeneous

A) starch and sugar B) methanol and water
C) graphite and charcoal D) calcium carbonate and calcium bicarbonate
 
Answer & Explanation Answer: B) methanol and water

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76 18958
Q:

Which of the following is an element

A) alumina B) brass
C) graphite D) silicon
 
Answer & Explanation Answer: D) silicon

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0 3730
Q:

Among the given nutrients, milk is a poor source of

A) Calcium B) Protein
C) Vitamin C D) Carbohydrates
 
Answer & Explanation Answer: C) Vitamin C

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178 32087
Q:

Which one of the following is not a mixture

A) air B) mercury
C) milk D) cement
 
Answer & Explanation Answer: B) mercury

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179 33457
Q:

' Misch metal ' is widely used in manufacture of which of the following

A) Material of car brake B) Smoke detectors
C) Cigarette lighters D) Emergency lights
 
Answer & Explanation Answer: C) Cigarette lighters

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49 15940
Q:

The isotopes of chlorine with mass number 35 and 37 exist in the ratio of

A) 1:2 B) 2:3
C) 3:1 D) 3:4
 
Answer & Explanation Answer: C) 3:1

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78 14122
Q:

A gas is found to have the formula . Its vapour density is 70.The value of n must be

A) 5 B) 4
C) 9 D) 6
 
Answer & Explanation Answer: A) 5

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3 3890