Questions

Q:

What element is found in all organic compounds?

A) Hydrogen B) Calcium
C) Nitrogen D) Carbon
 
Answer & Explanation Answer: D) Carbon

Explanation:

Carbon is found in all organic compounds.

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Q:

The time complexity of sequential search is

A) O(n) B) O(2n)
C) O(n^2) D) None
 
Answer & Explanation Answer: A) O(n)

Explanation:

The time complexity of sequential search is O(n)

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Q:

Raman Megassesay award was established in honour of which of the following country's president ?

A) Thailand B) Vietnam
C) Indonesia D) Philippines
 
Answer & Explanation Answer: D) Philippines

Explanation:
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Q:

Which of the following year is considered as the first year of the Muslim calender ? 

A) AD 622 B) AD 671
C) AD 571 D) AD 651
 
Answer & Explanation Answer: A) AD 622

Explanation:

Muhammad had to leave Mecca his birth place where he started preaching and take refuse in Medina, where he was given a warm welcome. This event took place in AD 622 and is known as the year of the Hijira, or migration, which became the first year of the Muslim Calendar.

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Q:

Representation level data models provide the concepts that are close to the way many users perceive data

A) TRUE B) FALSE
Answer & Explanation Answer: B) FALSE

Explanation:

High level data models provide the concepts that are close to the way many users perceive data

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Q:

 Which of the following is an advantage of partitioning?

A) Complexity B) Inconsistent access speed
C) Extra space D) Security
 
Answer & Explanation Answer: D) Security

Explanation:
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Q:

What is the bond order of O2?

A) 1.5 B) 2
C) 2.5 D) 1
 
Answer & Explanation Answer: B) 2

Explanation:

The number of bonds between a pair of atoms is called the bond order.

Bond orders can be calculated from Lewis structures, which are the heart of the valence-bond model. Oxygen, for example, has a bond order of two.

Structure

When there is more than one Lewis structure for a molecule, the bond order is an average of these structures. The bond order in sulfur dioxide, for example, is 1.5  the average of an S-O single bond in one Lewis structure and an S=O double bond in the other.

Structures

In molecular orbital theory, we calculate bond orders by assuming that two electrons in a bonding molecular orbital contribute one net bond and that two electrons in an antibonding molecular orbital cancel the effect of one bond. We can calculate the bond order in the O2 molecule by noting that there are eight valence electrons in bonding molecular orbitals and four valence electrons in antibonding molecular orbitals in the electron configuration of this molecule. Thus, the bond order is two.

Equation

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Q:

Which article of the Indian Constitution deals with the creation of All India Services?

A) 315 B) 313
C) 312 D) 311
 
Answer & Explanation Answer: C) 312

Explanation:

312-Article of the Indian Constitution deals with the creation of All India Services.

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