1.  Direct NaCl molecule can be formed

2.  No direct NaCl molecule can be formed

3.  Elevtronegativity of chlorine atom is 3.1 is higher than that of a sodium atom(0.9)

4.  NaCl is electrically neutral

4
Correct Answer :

No direct NaCl molecule can be formed


Explanation :
No Explanation available for this question

1.  Na+ ions help in retention of water in body tissues

2.  NaCl is involved in supply of energy

3.  NaCl furnishes most of cell fuel

4.  Na+ impairs nerve impulses involved in transmission of pain sensation

4
Correct Answer :

Na+ ions help in retention of water in body tissues


Explanation :
No Explanation available for this question

1.  Tiger – tigris, the species

2.  Cuttlefish – Mollusca, a class

3.  Hums sans – primate, the family

4.  Housefly – Musca, an  order.

4
Correct Answer :

Tiger – tigris, the species


Explanation :
No Explanation available for this question

1.  Reovirus

2.  Adenovirus

3.  Papovavirus

4.   Parvovirus

4
Correct Answer :

Adenovirus


Explanation :
No Explanation available for this question

1.  DsDNA

2.  SsDNA

3.  SsRNA

4.  DsRNA

4
Correct Answer :

DsDNA


Explanation :
No Explanation available for this question

1.  Botanical gardens have collection of living plants for reference

2.  A museum has collection of photographs of plants and animals

3.  key is taxonomic aid for identification of specimens.

4.  herbarium houses dried pressed and preserved plant specimens.

4
Correct Answer :

A museum has collection of photographs of plants and animals


Explanation :
No Explanation available for this question

1.  Phototropism

2.  Cell division

3.  Hibernation

4.  Accommodation

4
Correct Answer :

Cell division


Explanation :
No Explanation available for this question

1.  Transformation

2.  Conjugation

3.  Translocation

4.  Transduction

4
Correct Answer :

Transduction


Explanation :
No Explanation available for this question

1.  Office and defence

2.  Concealment

3.  Offence

4.  Defence

4
Correct Answer :

Office and defence


Explanation :
No Explanation available for this question

1.  Swimming

2.  Flying

3.  Climbing

4.  Running

4
Correct Answer :

Flying


Explanation :
No Explanation available for this question

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