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Q:

How many valence electrons are in carbon?

A) 2 B) 4
C) 6 D) 3
 
Answer & Explanation Answer: B) 4

Explanation:

The main group number for an element can be found from its column on the periodic table. For example, carbon is in group 4 and has 4 valence electrons. Oxygen is in group 6 and has 6 valence electrons.

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Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , CAT , GATE
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Q:

If I use the following printf() to print a long int why I am not warned about the type mismatch?

printf ("%d",num );

Answer

When a function accepts a variable number of arguments , its prototype cannot provide any information about the number of arguments and type of those variable arguments. Hence the compiler cannot warn about the mismatches. The programmer must make sure that arguments match or must manually insert explicit typecast.

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Subject: Programming

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Q:

Which of the following is the farthest planet to the Sun

A) Mars B) Jupitar
C) Neptune D) Earth
 
Answer & Explanation Answer: C) Neptune

Explanation:
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Filed Under: World Geography

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Q:

A boy is swinging a ball attached to a string in a horizontal circle.If the string snaps

A) the ball will travel towards the center of the circle and fall down B) it will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down
C) it will fall down at the same place where the string breaks D) none of these
 
Answer & Explanation Answer: B) it will continue to travel along a tangent to the circle at the point the ball was at the time of snapping and finally fall down

Explanation:

The centripetal force having  been removed the body cannot execute the curved path. (B) is Correct.

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Filed Under: Physics

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Q:

With what subject to the Article 5 to 11 of the constitution of India deal

A) Indian Union and its territory B) Citizenship
C) Fundamental Duties D) Union Executive
 
Answer & Explanation Answer: B) Citizenship

Explanation:
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Filed Under: Indian Politics

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Q:

Sleeping sickness in man is caused by the organism

A) plasmodium B) entamoeba
C) giardia D) trypanosoma
 
Answer & Explanation Answer: D) trypanosoma

Explanation:

Trypanosoma is a protozoan animal. It lives as a parasite in the blood and later invades the cerebrospinal fluid to cause the sleeping sickness. This parasite is transmitted by the Tsetse fly.

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Filed Under: Biology

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Q:

The uranium mines being develope by UCIL at Lambapur and Domiasiat are located, respectively, in which of the following states?

A) Jharkhand and Arunachal Pradesh B) West Bengal and Assam
C) Andhra Pradesh and Meghalaya D) Maharashtra and Sikkim
 
Answer & Explanation Answer: C) Andhra Pradesh and Meghalaya

Explanation:
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Filed Under: Indian Geography

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Q:

The pressure exerted by a 760 mm column of mercury at 0°C  is known as

A) 1 pascal B) 1 atmosphere
C) 1 bar D) 1 poise
 
Answer & Explanation Answer: B) 1 atmosphere

Explanation:

1 atm: It was originally defined as the pressure exerted by 760 mm of mercury at 0 °C and standard gravity (g = 9.80665 m/s2).

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Filed Under: Physics
Exam Prep: Bank Exams

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