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:

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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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:

Li3PO4 compound name?

A) Lithium perchlorate B) Lithium phyrite
C) Lithium phosphate D) None
 
Answer & Explanation Answer: C) Lithium phosphate

Explanation:

The given compund Li3PO4 name is Lithium phosphate.

 

Lithium phosphate is a white crystal at room temperature. It is slightly soluble in water.

It  can be used to produce glass, disk, colorful phosphor powder. It can also be used as a catalyst in some reactions.

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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:

Which of the following statements is INCORRECT?

I) Bleaching powder is a pale yellow powder

II) Dry NH3 gas turns red litmus blue

III) The pH of rain water is nearly 7

IV) The pH of acid rain is nearly 5.6

 

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

Explanation:
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Q:

An atom can achieve octet by ______.

 

I. sharing electron

II. gaining electron

III. losing 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

Explanation:
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Q:

Which country accepted the policy of Dual Citizenship

A) India B) Canada
C) Australia D) U.S.A
 
Answer & Explanation Answer: D) U.S.A

Explanation:
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