Questions

Q:

What is the number of atoms constituting a molecule known as?

A) Atomicity B) Atomic mass
C) Atomic number D) Isotopes
 
Answer & Explanation Answer: A) Atomicity

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Q:

When electricity is passed through an aqueous solution of Sodium Chloride (brine), it decomposes to form.

 

A) NaOH + H2 + Cl2 B) NaOH + H2 + O2
C) NaOH + HCl + H2 D) NaOH + H2 + N2
 
Answer & Explanation Answer: A) NaOH + H2 + Cl2

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Q:

By how many atomic mass units do subsequent members of homologous series differ?

A) 26 B) 32
C) 20 D) 14
 
Answer & Explanation Answer: D) 14

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Q:

For dilution of a concentrated acid, we should add:

A) water into the diluted acid B) water into the concentrated acid
C) first water into the acid and then more acid into the water D) concentrated acid into water
 
Answer & Explanation Answer: B) water into the concentrated acid

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Q:

The official language of Goa is ___.

A) English B) Portuguese
C) Konkani D) Marathi
 
Answer & Explanation Answer: C) Konkani

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Q:

Which part of the brain regulates breathing?

A) Cerebellum B) Medulla
C) Fore-brain D) Mid-brain
 
Answer & Explanation Answer: B) Medulla

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Q:

Which Tennis player was banned for 2 years by tennis Integrity Unit on December,2020?

A) Youssef Hossam B) Sandra Samir
C) Mostafa Hatem D) Karim Hossam
 
Answer & Explanation Answer: C) Mostafa Hatem

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Q:

A charge of 2 C passes from one point to the other in a circuit. If the potential difference between the two points is 5 V, the amount of work done is

A) 5 J B) 10 J
C) 2.5 J D) 0.4 J
 
Answer & Explanation Answer: B) 10 J

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