Questions

Q:

Which compound is a nonelectrolyte?

A) C2H6O B) HCl
C) Na2CO3 D) NaCl
 
Answer & Explanation Answer: A) C2H6O

Explanation:

C2H6O is a Non-electrolyte.

 

An electrolyte is a compound that conducts an electric current when it is in an aqueous solution or melted. In order to conduct a current, a substance must contain mobile ions that can move from one electrode to the other. All ionic compounds are electrolytes. When ionic compounds dissolve, they break apart into ions which are then able to conduct a current ( conductivity ). Even insoluble ionic compounds such as CaCO 3 are electrolytes because they can conduct a current in the molten (melted) state.

 

A nonelectrolyte is a compound that does not conduct an electric current in either aqueous solution or in the molten state. Many molecular compounds, such as sugar or ethanol, are nonelectrolytes. When these compounds dissolve in water, they do not produce ions.

 

Electrolytes are of 3 types ---- Strong Electrolytes, Weak Electrolytes and Non Electrolytes.

 

Strong Electrolytes ---- Compounds which completely dissolves. ( NaCl, Na2Co3, HCl )

Weak Electrolytes ----- Compounds which do not completely dissolves.

Non Electrolytes ------ Compounds which do not dissolves at all.

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Q:

Rearrange the parts of the sentence in correct order.As a result of greater competition

P : while others are contracting

Q : in the US computer industry

R : some computer companies are expanding

 

A) PQR B) QRP
C) PRQ D) QPR
 
Answer & Explanation Answer: B) QRP

Explanation:
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Q:

Improve the bracketed part of the sentence.

The teacher did not ask (any questions to Rinky).

A) any questions of Rinky B) to Rinky any questions
C) Rinky any questions D) no improvement
 
Answer & Explanation Answer: C) Rinky any questions

Explanation:
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Q:

The world's largest biofuel plant with production capacity of 110 million liters of fuel annually has been set up in 

A) China B) India
C) Brazil D) USA
 
Answer & Explanation Answer: C) Brazil

Explanation:
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Q:

In the following question, choose the word opposite in meaning to the given word.

 

Mitigate

A) enlarge B) reduce
C) increase D) multiply
 
Answer & Explanation Answer: C) increase

Explanation:
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Q:

A man jumping out of a moving train is thrown 

A) forward B) backward
C) sidewaqys D) None of these
 
Answer & Explanation Answer: A) forward

Explanation:

At the time of jumping out he has the same velocity as the moving train

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Q:

Improve the bracketed part of the sentence.

The parents gave their children some (advice) before they left for the picnic.

A) advices B) advise
C) advises D) no improvement
 
Answer & Explanation Answer: D) no improvement

Explanation:
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Q:

Which planet was named after the Roman God Zeus

A) Mars B) Earth
C) Venus D) Jupiter
 
Answer & Explanation Answer: D) Jupiter

Explanation:
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