Questions

Q:

According to the modern Periodic Law, the properties of elements are periodic functions of their

A) volency B) atomic mass
C) number of neutrons D) atomic number
 
Answer & Explanation Answer: D) atomic number

Explanation:

Atomic number is the serial number of an element in the periodic classification of elements. It gives the number of protons and also the number of electrons in an atom.

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Filed Under: Chemistry

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Q:

The original ASCII code used ___________ bits of each byte, reserving that last bit for error checking ?

A) 5 B) 6
C) 7 D) 8
 
Answer & Explanation Answer: C) 7

Explanation:
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Q:

...................is called the "land of a  thousand lakes"

A) Canada B) Finland
C) Switzerland D) Sweden
 
Answer & Explanation Answer: B) Finland

Explanation:
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Filed Under: World Geography

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Q:

Which of the following solutions is alkaline?

 

A) H+ <1 × 10-7 Mol/l B) H+ = 1 × 10-4 Mol/l
C) H+ = 1 × 10-7 Mol/l D) H+ > 1 × 10-7 Mol/l
 
Answer & Explanation Answer: A) H+ <1 × 10-7 Mol/l

Explanation:
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Exam Prep: Bank Exams

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Q:

Quartz composed of which two elements

A) Iron and magnesium B) Iron and oxygen
C) Oxygen and silicon D) Silicon and iron
 
Answer & Explanation Answer: C) Oxygen and silicon

Explanation:
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Q:

When a ray of light is  refracted by a prism such that the angle of deviation is minimum then

A) the angle of emergence is equal to the angle of incidence B) the angle of emergence is greater than the angle of incidence
C) the angle of emergence is smaller than the angle of incidence D) the sum of the angle of incidence and the angle of emergence is equal to 90 degrees
 
Answer & Explanation Answer: A) the angle of emergence is equal to the angle of incidence

Explanation:
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Q:

What is the maximum velocity with which a body of mass 'm' must enter a vertical loop of radius 'R'so that it can complete the loop?

A) 0  B) gR   C)  2gR  D)  5gR

A) A B) B
C) C D) D
 
Answer & Explanation Answer: D) D

Explanation:

To complete the vertical loop, the minimum speed required at the lowest point  = 5gR.

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Job Role: Analyst

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Q:

Clouds usually form when

A) air temperature reaches the dew point B) evapouration has warmed the surrounding air
C) relative humidity is 0% D) condensation nuclei have been removed from the air
 
Answer & Explanation Answer: A) air temperature reaches the dew point

Explanation:
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