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Q:

Plaster of Paris ______.

 

I. changes into gypsum on mixing with water

II. is CaSO4.2H2O

III. is used for decoration

 

A) Only I and II   B) Only I and III  
C) Only II and III   D) All I, II and III  
 
Answer & Explanation Answer: B) Only I and III  

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Filed Under: Chemistry
Exam Prep: Bank Exams

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Q:

What is formed when helium atom loses one electron?

 

A) Proton B) Positive helium ion
C) Negative helium ion D) Alpha particle
 
Answer & Explanation Answer: B) Positive helium ion

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Filed Under: Chemistry
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Q:

What is the position of metallic ion and non-metallic ion in a chemical formula?

 

A) Metal ion at second position B) Non-metal ion at first position
C) Metal ion at first and non-metal ion at second position D) No option is correct
 
Answer & Explanation Answer: C) Metal ion at first and non-metal ion at second position

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Filed Under: Chemistry
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1 44200
Q:

An electron loses potential energy when it

 

A) shifts to a more electronegative atom. B) increases its kinetic energy.
C) shifts to a less electronegative atom. D) increases its activity as an oxidizing agent.
 
Answer & Explanation Answer: A) shifts to a more electronegative atom.

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Filed Under: Chemistry
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Q:

An object is placed at the centre of curvature of a concave mirror. Its image is formed at

 

A) a point beyond centre of curvature B) a point between focus and centre of curvature
C) the centre of curvature D) the focus
 
Answer & Explanation Answer: B) a point between focus and centre of curvature

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams

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Q:

The Sum of three consecutive numbers is 126.Find the highest number.

 

A) 41 B) 42
C) 43 D) 44
 
Answer & Explanation Answer: D) 44

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Filed Under: Inventions
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208 44134
Q:

Valency of an element depends on which of the following?

I. Number of losing electron

II. Number of gaining electron

III. Number of sharing electron

 

A) Only I and II B) Only I and III
C) Only II and III D) All I, II and III
 
Answer & Explanation Answer: D) All I, II and III

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Filed Under: Chemistry
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0 44078
Q:

What is two days after the day after the day before yesterday?

Answer

Tomorrow


The day before yesterday was two days ago; the day after the day before yesterday was yesterday; two days after that (yesterday) is tomorrow.

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Subject: Clock puzzles

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