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Q:

Which one of the following statements is correct?

A) The oxidation number for hydrogen is always zero. B) The oxidation number for hydrogen is always + 1.
C) The oxidation number for hydrogen is always -1. D) Hydrogen can have more than one oxidation number.
 
Answer & Explanation Answer: D) Hydrogen can have more than one oxidation number.

Explanation:

Hydrogen has two possible oxidation numbers: +1 and -1.

-1 in case of hydrides.

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Q:

Which type of Ethanol is made from sources like molasses, sugarcane, sugar beet, sorghum and edible oil seeds?

 

A) 2G ethanol B) 1G ethanol
C) Clean ethanol D) 3G ethanol
 
Answer & Explanation Answer: B) 1G ethanol

Explanation:
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Q:

The minimum short­term natural hazard is __________

A) blizzard B) earthquake
C) volcanic eruption D) bolt of lightning
 
Answer & Explanation Answer: D) bolt of lightning

Explanation:
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Filed Under: Indian Geography

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Q:

In the following question, the sentence given with blank to be filled in with an appropriate word. Select the correct alternative out of the four and indicate it by selecting the appropriate option.

 

When others criticise us we should not be ______ but should be truthful, honest and sincere.

 

A) saturated B) distracted
C) perturbed D) dissipated
 
Answer & Explanation Answer: C) perturbed

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Q:

On 5 January 2018, Lok Sabha passed High Court and Supreme Court Judges (Salaries and Conditions of Service) Amendment Bill, 2017. The Bill seeks to revise the pension for Chief Justice of India to a maximum of how much amount per annum?

 

A) Rs 16,80,000   B) Rs 20,80,000  
C) Rs 25,80,000   D) Rs 10,80,000  
 
Answer & Explanation Answer: A) Rs 16,80,000  

Explanation:
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Filed Under: Indian Politics
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Q:

Chemical properties of isotopes .............

A) must be same B) must be different
C) need not be same D) need not be different
 
Answer & Explanation Answer: A) must be same

Explanation:
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Q:

A binding price ceiling is designed to

A) keep prices low B) increase efficiency
C) increase the quality of the good D) prevent shortages
 
Answer & Explanation Answer: A) keep prices low

Explanation:
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Q:

Which one of the followingis notan allotrope of carbon?

A) Coal B) Diamond
C) Graphite D) Graphene
 
Answer & Explanation Answer: A) Coal

Explanation:

Allotropy is the property of some chemical elements to exist in two or more different forms, or allotropes, when found in nature. There are several allotropes of carbon like diamond, graphite, graphene, fullerene, etc.Coal is not an allotrope of carbon because it is not 100% carbon. It contains lot of silica, sulphur and other compounds of carbon apart from carbon.

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