Sawaal

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Q:

Which of the following does not contain the material particles

A) alpha - rays B) beta - rays
C) gamma - rays D) anode rays
 
Answer & Explanation Answer: C) gamma - rays

Explanation:
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Filed Under: Chemistry

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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.

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Filed Under: Chemistry
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Q:

Vitamins are

A) Macro Nutrients B) Micro nutrients
C) Essential Amino acids D) Non essential Amino acids
 
Answer & Explanation Answer: B) Micro nutrients

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Filed Under: Biology

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Q:

Syadvad is a doctrine of

A) Lokayatism B) Saivism
C) Jainism D) Vaishnavism
 
Answer & Explanation Answer: C) Jainism

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Filed Under: Indian History

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Q:

Which of the following is the Trophy / Cups associated with the game of Hockey?

A) Derby B) Agha Khan Cup
C) Merdeka D) Vizzy Trophy
 
Answer & Explanation Answer: B) Agha Khan Cup

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Filed Under: Sports

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Q:

The Microsoft Access wildcards are ____ and ____ .

A) asterisk (*); percent sign (%)   B) percent sign (%); underscore (_)  
C) underscore(_); question mark (?) D) question mark (?); asterisk (*)
 
Answer & Explanation Answer: D) question mark (?); asterisk (*)

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Filed Under: Operating Systems
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Q:

Who is known as Barefoot Painter

Answer

M.F.Hussain

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Subject: Indian Culture

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Q:

Who did not have an important role in the Swadeshi Movement ?

A) Muslims B) Students
C) Women D) Peasants
 
Answer & Explanation Answer: D) Peasants

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Filed Under: Indian History
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Job Role: Bank Clerk , Bank PO

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