Questions

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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Q:

What is the IUPAC name of [Co(NH3)4Cl2]?

A) Tetra-ammine dichloro cobalt (III) chloride B) Tetra-ammine trichloro cobalt (III)
C) Tri-ammine dichloro cobalt (III) chloride D) Tetra-ammine dichloro cobalt
 
Answer & Explanation Answer: A) Tetra-ammine dichloro cobalt (III) chloride

Explanation:

The IUPAC nomenclature in organic chemistry is a systematic method that is used to name organic chemical compounds as recommended by the International Union of Pure and Applied Chemistry (IUPAC).

 

The IUPAC name of the given complex [Co (NH₃)₄Cl₂ ]Cl is - Tetra-ammine dichloro cobalt (III) chloride.

 

The complex [Co (NH₃)₄ Cl₂ ] Cl ionizes an aqueous solution to furnish the chloride ion Cl⁻ and [Co (NH₃)₄ Cl₂ ] ⁺.

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18 18277
Q:

The basic reason for the extraordinary sparkle of suitably cut diamond is that

A) it has well defined cleavage planes B) it has a very high transparency
C) it has a very high refractive index D) it is very hard
 
Answer & Explanation Answer: C) it has a very high refractive index

Explanation:
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Filed Under: Physics

95 18243
Q:

In an economy , the sectors are classified into public and private on the basis of

A) employment conditions B) nature of economic activities
C) ownership of enterprises D) use of raw materials
 
Answer & Explanation Answer: C) ownership of enterprises

Explanation:
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31 18224
Q:

In which area did Nandalal Bose earn fame?

 

A) Painting B) Folk Art
C) Dance D) Politics
 
Answer & Explanation Answer: A) Painting

Explanation:
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Q:

What is capital structure? What are the principles of capital structure management?

Answer

Capital structure is a term which is referred to be the mix of sources from which the long term funds are required for business purposes which are raised to improve the capital of the company. To fund an organization plan this capital structure is required which is the combination of debt and equity. The management ensures the capital structure accesses which are needed to fund future growth and enhance financial performance. The principles of capital structure management which are essentially required are as follows:-


 


1) Cost Principle


2) Risk Principle


3) Control Principle


4) Flexibility Principle


5) Timing Principle

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Q:

Who is said to have become the chief of the Jain Sangh after the death of Mahavira

A) Jambu B) Bhadrabahu
C) Sthulbhadra D) Sudharma
 
Answer & Explanation Answer: D) Sudharma

Explanation:
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36 18111
Q:

The articles 17 and 18 of Constitution provide

A) Social Equality B) Economic Equality
C) Political Equality D) Religious Equality
 
Answer & Explanation Answer: A) Social Equality

Explanation:
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