Sawaal

  Questions

Popular Latest Rated
Q:

DRDO full form is

A) Delhi Research and Development Organisation B) Defence Research and Deployment
C) Delhi Rail Development Organisation D) Defence Research and Development Organisation
 
Answer & Explanation Answer: D) Defence Research and Development Organisation

Explanation:

DRDO stands for The Defence Research and Development Organisation.

 

The Defence Research and Development Organisation (DRDO) is an agency of the Republic of India, charged with the military's research and development, headquartered in New Delhi, India.

Report Error

View Answer Report Error Discuss

Filed Under: General Awareness
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

7 7654
Q:

Which of the following places is associated with Jainism

A) Kapilvastu B) Pava
C) Prayag D) Shravasti
 
Answer & Explanation Answer: B) Pava

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Indian History

5 7654
Q:

Who is the first British footballer to play 100 champions League matches and the highest paid player in the world ?

Answer

David Beckham

Report Error

View answer Workspace Report Error Discuss

Subject: Famous Personalities

2 7652
Q:

The first Sultan to adopt the principle of measurement of cultivable land for determining the land revenue was

A) Ghiyas - ud- din -Tughluq B) lltutmish
C) Ala-ud-din Khalji D) Balban
 
Answer & Explanation Answer: C) Ala-ud-din Khalji

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Indian History

6 7651
Q:

Kalbaisakhis or Norwesters originate in

A) Chhota Nagpur Plateau B) Karnataka Coast
C) Coromandal Coast D) Malwa plateau
 
Answer & Explanation Answer: A) Chhota Nagpur Plateau

Explanation:

They are carried eastwards to West Bengal and Assam by westerly winds

Report Error

View Answer Report Error Discuss

Filed Under: Indian Geography

11 7651
Q:

The reactivity of an atom arises from 

A) the existence of unpaired electrons in the valence shell B) the energy differences between the electron shells
C) the sum of the potential energies of all the electron shells D) the average distance of the outermost electron shell from the nucleus
 
Answer & Explanation Answer: A) the existence of unpaired electrons in the valence shell

Explanation:

When atoms react they do so in order to reach the lowest energy, which is the most stable. The electrons orbitals will overlap in the way that reduces the energy the most. Orbitals of similar energy will produce the greatest stabilisation.The answer you gave isn't the whole story, it depends what species is reacting with what. The effective nuclear charge on the atom will affect the energy of the valance electrons.

 

Hence, the reactivity of an atom arises from the existence of unpaired electrons in the valence shell.

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE , Bank Exams , GATE
Job Role: Analyst , Bank Clerk

4 7647
Q:

Of the following elements, which one has the same oxidation  state in all of its compounds?

A) Hydrogen B) Fluroine
C) Carbon D) oxygen
 
Answer & Explanation Answer: B) Fluroine

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Chemistry

15 7645
Q:

The magnetic moment (spin only) of  [NiCl4]2-is

A) 1.41 BM B) 1.82 BM
C) 5.46 BM D) 2.82 BM
 
Answer & Explanation Answer: D) 2.82 BM

Explanation:

Hybridisation of Ni is e-  

Unpaired 3d8in  is 2 

So Ω = n(n+2)BM=2x4 = 8 = 2.82BM

Report Error

View Answer Report Error Discuss

Filed Under: Chemistry
Exam Prep: AIEEE

10 7642