Questions

Q:

Place these hydrocarbons in order of decreasing boiling point.

1. Paraffin

2. Octadecane

3. Hexane

4. Neohexane and

5. Ethane

A) Paraffin > Octadecane > Neohexane > Hexane > Ethane B) Paraffin > Octadecane > Hexane > Neohexane > Ethane
C) Hexane > Paraffin > Octadecane > Neohexane > Ethane D) None of the above
 
Answer & Explanation Answer: B) Paraffin > Octadecane > Hexane > Neohexane > Ethane

Explanation:

In hydrocarbon, the boiling point directly varies with the length of carbon chain. On increasing the number of carbon atom, the boiling point of the compound also increases. Paraffin contains highest number of carbon atoms whereas, ethane is comprised of two carbon atoms.

 

The decreasing order of boiling point of mention compounds is written as follows:

Paraffin > Octadecane > Hexane > Neohexane > Ethane

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10 94054
Q:

Which are two chemicals used to purify water?

A) Chlorine & Fluorine B) Fluorine & Iodine
C) Chlorine & Hydrogen peroxide D) Fluorine & Iodine
 
Answer & Explanation Answer: C) Chlorine & Hydrogen peroxide

Explanation:

Removing the contaminents if any in the water which causes harm to our health is involved in the purifying of water. 

 

This process involves chemicals. Chloramines, Hydrogen peroxide, Iodine are the chemicals which are used in purifying water.

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1 93490
Q:

Google and NASA have joined hands to identify which two new planets around Kepler 90?

 

A) Kepler 80i, kepler 90g B) Kepler 90g, kepler 80g
C) Kepler 80g, kepler 90i D) Kepler 82i, kepler 90g
 
Answer & Explanation Answer: C) Kepler 80g, kepler 90i

Explanation:
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2 92930
Q:

The winner of the open competition for designing the Rupee sign '₹' was

 

A) Uday Kumar B) Vijay Kumar
C) Prem Kumar D) Pranav Kumar
 
Answer & Explanation Answer: A) Uday Kumar

Explanation:
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7 92815
Q:

A clock is started at noon. By 10 minutes past 5, the hour hand has turned through:

A) 145 B) 150
C) 155 D) 160
 
Answer & Explanation Answer: C) 155

Explanation:

Angle traced by hour hand in 12 hrs = 360º.

 

Angle traced by hour hand in 5 hrs 10 min.  i.e., 31/6 hrs 36012*316°= 155º

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567 92176
Q:

Read the passage carefully and choose the best answer to each question out of the four alternatives.


The flora and fauna of Cubbon Park captures our attention more than anything else. But when you take time to look closely at the statue, you will marvel at its sheer grandeur. Sculpted by Sir Thomas Brock, the 11 feet high marble statue is larger than life. It brings out the personality of Queen Victoria, who had been the Monarch of Great Britain from 1837 till 1901, depicting a rather proud, stern person with pronounced features.

In 1906, the statue was unveiled in the city by George Frederick Ernest Albert, Prince of Wales and Duke of Cornwall and York, making it stand in all its glory in its 111th year. Even though there is a wealth of history to the statue, and it was made to appear imposing, the busy Bengalureans would probably refer to it as just another landmark. As the workers are busy in discussion on the instructions given to them, life continues as usual in the Park.


How many people unveiled the Queen Victoria statue at Cubbon Park?

A) One B) Six
C) Four D) Two
 
Answer & Explanation Answer: D) Two

Explanation:
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0 92131
Q:

Select the synonym of

bristle

A) thorn B) tranquil
C) friction D) sleek
 
Answer & Explanation Answer: A) thorn

Explanation:
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Filed Under: English
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1 92103
Q:

A computer cannot "boot" if it does not have the _____

A) Compiler B) Loader
C) Operating system D) Assembler
 
Answer & Explanation Answer: C) Operating system

Explanation:

An operating system is the system software that handles the software and hardware resources and provides services for the computer programs. SO without an operating system, a computer cannot "boot".

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563 91795