3
Q:

Which of the following group is NOT Dobereiner Triads?

 

A) Li, Na, K B) N, P Au
C) Cl, Br, I D) Ca, Sr, Ba

Answer:   B) N, P Au



Explanation:
Subject: Chemistry
Exam Prep: Bank Exams
Q:

Which of the following is an example of thermosetting plastic?

A) Bakelite B) PVC
C) Polyethylene D) No option is correct.
 
Answer & Explanation Answer: A) Bakelite

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0 1077
Q:

Which of the following can be beaten and converted into thin sheets?

A) Zinc B) Phosphorus
C) Sulphur D) Oxygen
 
Answer & Explanation Answer: A) Zinc

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3 1185
Q:

What is the process of melting also called?

A) Fusion B) Galvanisation
C) Crystallisation D) Evaporation
 
Answer & Explanation Answer: A) Fusion

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1 1081
Q:

In an acid base reaction which product is produced along with a salt?

A) Hydrogen gas B) Water
C) Oxygen gas D) Carbon dioxide
 
Answer & Explanation Answer: B) Water

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3 984
Q:

Which of the following is one of the commercial products obtained from Gelidium and Gracilaria and are used to grow microbes and in preparations of ice- creams and jellies?

A) Agar B) Chlorella
C) Spirullina D) Gymnosperms
 
Answer & Explanation Answer: A) Agar

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1 1090
Q:

What is the reaction between an acid and a base called?

A) Desalination B) Crystallisation
C) Neutralisation D) Sublimation
 
Answer & Explanation Answer: C) Neutralisation

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0 954
Q:

Magnesium (Mg) + Oxygen (O2) = ?

A) Mg2O B) MgO4
C) O2Mg D) MgO
 
Answer & Explanation Answer: D) MgO

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4 1546
Q:

Which base is present in lime water?

A) Sodium hydroxide B) Magnesium hydroxide
C) Calcium hydroxide D) Ammonium hydroxide
 
Answer & Explanation Answer: C) Calcium hydroxide

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1 1228