Questions

Q:

The oxidation number of Cr in K2Cr2O7 is

A) +6 B) -5
C) +3 D) -4
 
Answer & Explanation Answer: A) +6

Explanation:

We will rewrite the formula as an equation.

2K + 2Cr + 7O = 0

The zero comes from there being no overall charge on the compound.

Each oxidation number is represented by the element's symbol.

Since this compound is not a peroxide or superoxide, the oxidation value for O is -2

K being in group 1 has a +1 charge and therefore has an oxidation number of K is +1

Now, by putting known values in we have:

2(+1) + 2(Cr) + 7(-2) = 0

2 + 2Cr -14 = 0

2Cr = +12

Cr = +6.

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Filed Under: Chemistry
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Q:

Adverbs can modify all of the following except

A) Nouns B) Verbs
C) Adjectives D) Other adverbs
 
Answer & Explanation Answer: A) Nouns

Explanation:

An adverb is a word that modifies a verb, adjective, determiner, clause, preposition, or sentence.

Adverbs can modify all of the following except nouns.

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Filed Under: English
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Q:

'Start' menu in a standard personal computer is

 

A) Part of the hardware B) A set of options and commands
C) Nothing but the status bar D) Network related  
 
Answer & Explanation Answer: B) A set of options and commands

Explanation:
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Q:

Productivity is the combination of

A) efficiency and energy B) efficiency and effectiveness
C) efficiency and attitude D) effectiveness and resources
 
Answer & Explanation Answer: B) efficiency and effectiveness

Explanation:

Productivity is a result of the way that a business operates – the result of the way that its people, business processes, different functional units and suppliers come together to meet the needs and wants of its customers.

Productivity is the combination of intelligent planning and focused efforts and hence, it is a combination of Efficiency and Effectiveness.

Efficiency :


Efficiency is an internal measure of performance for companies that shows how well the company converts inputs into outputs. The more the ratio of outputs to inputs approaches 100 percent, the better the efficiency of the process will be. In simple terms, it is “doing things right” and comes from proper harnessing of time, cost and efforts.

Effectiveness :


Organizational effectiveness is an external measure of performance and indicates how well an organization fulfills the demands of various organizational stakeholders. Simply put, it is “doing the right things."

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Filed Under: Marketing and Sales
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Q:

Select the synonym of

 

pal

 

A) buddy B) lad
C) foe D) dude
 
Answer & Explanation Answer: A) buddy

Explanation:
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Filed Under: English
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Q:

What is the currency of Indonesia?

A) rupiah B) dinar
C) rangit D) riyal
 
Answer & Explanation Answer: A) rupiah

Explanation:

Currency of Indonesia is rupiah

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Filed Under: General Awareness

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Q:

Who among the following holds the office during the pleasure of President?

I. Attorney General of India

II. Governors of states

III. Comptroller and Auditor General of India

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

Explanation:
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Filed Under: Indian Politics
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Q:

Syadvad is a doctrine of

A) Lokayatism B) Saivism
C) Jainism D) Vaishnavism
 
Answer & Explanation Answer: C) Jainism

Explanation:
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Filed Under: Indian History

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