Exams


Q:

NH3 oxidation number?

A) -1 B) +1
C) 0 D) -3
 
Answer & Explanation Answer: C) 0

Explanation:

NH3, Ammonia is a neutral compound as the individual oxidation numbers elements that make up the compound NH3 are Nitrogen (N) and Hydrogen (H) sum to zero. 

We do not speak of the oxidation number of a molecule. We can speak of the oxidation numbers of the individual elements that make up the compound.

 

Here the oxidation number of Nirogen is -3 and that of Hydrogen is +1.

Now, NH3 = 1(-3) + 3(+1) = -3 + 3 = 0.

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Filed Under: Chemistry
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Q:

Select the option that would come next in the given figure series.

 

 

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: B) 2

Explanation:
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Filed Under: Image Analysis
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0 18898
Q:

A cube is painted blue on two adjacent surfaces and black on the surfaces opposite to blue surfaces and green on the remaining faces .Now the cube is cut into 216 smaller cubes of equal size.

A) 56 B) 48
C) 32 D) 64
 
Answer & Explanation Answer: D) 64

Explanation:

We know that Cubes with no surface painted can be find using x-23, where x is number of cuttings. Here x=6.

  6-23=64

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Filed Under: Cubes and Dice
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63 18888
Q:

From the given words, select the word which cannot be formed using the letters of the given word.

PREACHER

A) RECAP B) PARCH
C) PEACH D) CARES
 
Answer & Explanation Answer: D) CARES

Explanation:
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Filed Under: Logical Sequence of Words
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1 18872
Q:

In the following question, select the missing number from the given series.

10, 12, 14, 16, 18, ?

A) 22 B) 24
C) 20 D) 26
 
Answer & Explanation Answer: C) 20

Explanation:
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Filed Under: Number Series
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0 18860
Q:

Macro flowchart is also called as

A) Less Detail flowchart B) More detail flowchart
C) Simple detailed flowchart D) None of the above
 
Answer & Explanation Answer: A) Less Detail flowchart

Explanation:

A flowchart is a type of diagram that represents a workflow or process. A flowchart can also be defined as a diagrammatic representation of an algorithm, a step-by-step approach to solving a task.

Macro flowchart shows the outlines the main segments of program. Macro flowchart is also called as less detail flowchart.

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50 18858
Q:

Who was elected as the Prime Minister of Nepal in 2015?

 

A) Khil Raj Regmi B) Sushil Koirala
C) K.P. Sharma Oli D) Baburam Bhattarai
 
Answer & Explanation Answer: C) K.P. Sharma Oli

Explanation:
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Filed Under: Famous Personalities
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1 18845
Q:

In the following question, select the missing number from the given series.

 

14, 14, 21, 42, 105, ?

 

A) 285 B) 315
C) 305 D) 215
 
Answer & Explanation Answer: B) 315

Explanation:
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Filed Under: Number Series
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