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1
Q:

In modern periodic table while going from top to bottom in a group ______.

 

A) size of an atom increases B) size of an atom decreases
C) ionisation energy of an atom increases D)  size and ionisation energy of an atom increases

Answer:   D)  size and ionisation energy of an atom increases



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Subject: Chemistry
Exam Prep: Bank Exams
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Which of the following is an example of thermosetting plastic?

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Answer & Explanation Answer: A) Bakelite

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

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

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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?

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Answer & Explanation Answer: A) Agar

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

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

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Magnesium (Mg) + Oxygen (O2) = ?

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Answer & Explanation Answer: D) MgO

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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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