Questions

Q:

The oldest known organic compound is

A) Urea B) Methane
C) Acetic acid D) Benzene
 
Answer & Explanation Answer: C) Acetic acid

Explanation:

In the form of vinegar, acetic acid is known from very early times. It is got by oxidation of fermented liquors (10-15%, alcohol) by air under the influence of a bacteria called 'mycoderma acetic'

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Filed Under: Chemistry

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Q:

What type of bond is joining the two hydrogen atoms?

A) Hydrophobic B) Ionic
C) Covalent D) Hydrophilic
 
Answer & Explanation Answer: C) Covalent

Explanation:

Covalent type of bonding joins The two hydrogen atoms are joned by Covalent type of bonding.

In this type of bonding, electrons are shared between the atoms in order to fill there valence shells. Thus sharing of electrons take place in between the hydrogen atoms.

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Filed Under: Chemistry
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Q:

_________ is known as the Queen of the Arabian Sea?

A) Cochin B) Mumbai
C) Mangalore D) Surat
 
Answer & Explanation Answer: A) Cochin

Explanation:
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Filed Under: Indian Geography

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Q:

Which of the following are elements of the colder principle?

A) Keep clothing clean and dry B) Repair clothing as necessary
C) Wear clothing loose and layered D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:

In scouts, the military and most outdoor books or schools teach the COLDER principal. It is a great acronym for caring and using you clothing.

 

C - keep your clothing CLEAN. Dirt can break down the fibers of your clothing.

O - don't OVERHEAT. Sweat can lessen the effectiveness of clothing.

L - wear you clothes LOOSE and in LAYERS. Makes your system versatile.

D - stay DRY.

E - EXAMINE your clothing. Look for worn or damaged areas of you clothing.

R - REPAIR any damage that is found.

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Q:

A Fuse is used in mains electric supply as a safety devices. Which one of the following statements about the fuse is correct?

A) It is connected in parallel with the main switch B) It is made mainly from silver alloys
C) It must have a low melting point D) It must have a very high resistance
 
Answer & Explanation Answer: C) It must have a low melting point

Explanation:
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Q:

Solids have definite shapes.This is because

A) the forces of cohesion of the molecules within are very much less in them B) the forces of cohesion are very large
C) the forces of adhesion are large D) the forces of adhesion are less
 
Answer & Explanation Answer: B) the forces of cohesion are very large

Explanation:

Cohesion refers to attraction between molecules of the same kind while adhesion refers to attraction between different kinds of molecules

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Q:

Which technology is used in compact disc or disks?

A) Laser B) Mechanical
C) Electrical D) Electro magnetic
 
Answer & Explanation Answer: A) Laser

Explanation:

                                    Which_technology_is_used_in_compact_disc_or_disks1538026052.jpg image

Compact disc (CD) is a digital optical disc data storage format that was co-developed by Philips and Sony and released in 1982. 

These are actually made to replace floppy disks that were used to store files and programs from the computer.

 

The format was originally developed to store and play only sound recordings but was later adapted for storage of data (CD-ROM).ese CD's uses Laser technology.

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Q:

Santhal, a folk dance of India, belongs to which state?

 

A) Karnataka B) Odisha
C) West Bengal D) Maharashtra
 
Answer & Explanation Answer: C) West Bengal

Explanation:

Santhal, one of the best tribal folk dances of India, belongs to the state of West Bengal.

 

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