Analyst Questions


Q:

What is the oxidation number of carbon in NaHCO3?

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

Explanation:

The given compound is NaHCO3 Sodium bicarbonate which is commonly known as Baking soda.

Oxidation numbers are the charges on ions. When a neutral atom loses electrons it becomes positively charged. When a neutral atom gains electrons it becomes negatively charged.

 

Here the C represents the oxidation state of carbon in this compound. Compounds are electrically neutral, which is why we set the sum of the oxidation states equal to zero.

Sodium has a +1 oxidation state. Hydrogen has a +1 oxidation state. Oxygen has a -2 oxidation state. There are three oxygen atoms, which means the total oxidation state provided by both oxygen ions is -6. Adding up these oxidation states we get:

1 + 1 + (-6) + C = 0

-4 + C = 0

=> C = 4


This means the oxidation state of carbon in this compound is +4.

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Q:

Soil erosion on hillslopes can be checked by

A) Terrace cultivation B) Contour ploughing
C) Afforestation D) Strip cropping
 
Answer & Explanation Answer: A) Terrace cultivation

Explanation:

Hence, soil erosion on hillslopes can be checked by Terrace cultivation.

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Filed Under: Indian Geography
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Q:

You drive to the store at 20 kmph and return by the same route at 30 kmph. Discounting the time spent at the store, what was your average speed ?

A) 25 kmph B) 24 kmph
C) 26 kmph D) 22 kmph
 
Answer & Explanation Answer: B) 24 kmph

Explanation:

Average speed=total distance/total time
Let distance to store be  K
then, total time =(K/20)+(K/30)=K/12
and, total time =(2K)
so average speed= 2K / (K/12) = 24kmph.

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Filed Under: Time and Distance
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3 5962
Q:

In word, the mailing list is known as the

A) Data source B) Sheet
C) Source D) Data sheet
 
Answer & Explanation Answer: A) Data source

Explanation:

In word, the mailing list is known as the Data source.

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3 5960
Q:

Which physical connection is the fastest?

A) Coaxial cable B) Infrared
C) Microwave D) Fiber-optic
 
Answer & Explanation Answer: D) Fiber-optic

Explanation:

Fiber-optic physical or wired connection is the fastest communication connection.

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Q:

Which is the highest gallantry award in India?

A) Param Vir Chakra B) Kirti Chakra
C) Vir Chakra D) Param Vishishtat Seva Medal
 
Answer & Explanation Answer: A) Param Vir Chakra

Explanation:

Param Vir Chakra (PVC) is India's highest military decoration awarded for the displaying distinguished acts of valor during the war.

 

Ashok Chakra Award – An Indian military decoration awarded for valour, courageous action or self-sacrifice away from the battlefield. It is the peacetime equivalent of the Param Vir Chakra.

Kirti Chakra – Second in order of precedence of peacetime gallantry awards.


Maha Vir Chakra (MVC) is literally called a great warrior medal. Vir Chakra is an Indian gallantry award presented for acts of bravery in the wars.

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3 5954
Q:

GDP can be calculated by summing

A) Consumption, investment, government purchases, and net exports B) Consumption, investment, government spending, and imports
C) Consumption, investment, government purchases, and imports D) Consumption, investment, wages, and rent
 
Answer & Explanation Answer: A) Consumption, investment, government purchases, and net exports

Explanation:

Gross domestic product (GDP) is the monetary value of all the finished goods and services produced within a country's borders in a specific time period.

Simply, GDP is a broad measurement of a nation’s overall economic activity. 

It is calculated by summation of Consumption, investment, government purchases, and net exports.

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Filed Under: Indian Economy
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5 5952
Q:

What is the heaviest noble gas?

A) krypton B) radon
C) helium D) xenon
 
Answer & Explanation Answer: B) radon

Explanation:

The seven elements — helium, neon, argon, krypton, xenon, radon, and oganesson of Group 18 of the periodic table are Noble or Inert gases.

 

Radon is the heaviest and Helium is the lightest gases of the noble gases.

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