Amongst the elements with following electronic configurations, which one of them may have the highest ionization energy

1.  Ne [3s23p2]

2.  Ar [3d104s24p3]

3.  Ne [3s23p1]

4.  Ne [3s23p3]

View Answer  
4
Correct Answer :

Ne [3s23p3]


Explanation :
No Explanation available for this question

Which one of the following is employed as a tranquilizer

1.  Naproxen

2.  Tetracycline

3.  Chlorpheninamine

4.  Equanil

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4
Correct Answer :

Equanil


Explanation :
No Explanation available for this question

10 g of hdyrogen and 64 g of oxygen were filled in a steel vessel and exploded. Amount of water produced in this reaction will be:

1.  3 mol

2.  4 mol

3.  1 mol

4.  2 mol

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4
Correct Answer :

4 mol


Explanation :
No Explanation available for this question

Among the following which is the strongest oxidising agent

1.  Br2

2.  I2

3.  Cl2

4.  F2

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4
Correct Answer :

F2


Explanation :
No Explanation available for this question

Which of the following hormones contains iodine

1.  testosterone

2.  adrenaline

3.  thyroxine

4.  insulin

View Answer  
4
Correct Answer :

thyroxine


Explanation :
No Explanation available for this question

Which one of the following polymers is prepared by condensation polymerization

1.  Nylon-66

2.  Teflon

3.  Rubber

4.  Styrene

View Answer  
4
Correct Answer :

Nylon-66


Explanation :
No Explanation available for this question

The reaction of hydrogen and iodine monochloride is given as: H2(g)+ 2ICl(g) → 2HCl(g) + I2(g) This reaction is of first order with respect to H2(g) and ICl(g), following mechanisms were proposed: Mechanism: H2(g)+ 2ICl(g) → 2HCl(g) + I2(g) Mechanism B: H2(g)+ ICl(g) → HCl(g) + HI(g);slow HI(g)+ ICl(g) → HCl(g) + I2(g);fast Which of the above mechanism (s) can be consistent with the given information about the reaction

1.  B only

2.  A and B both

3.  Neither A nor B

4.  A only

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4
Correct Answer :

A and B both


Explanation :
No Explanation available for this question

If 60% of a first order reaction was completed in 60 min,50% of the same reaction would be completed in approximately: (log 4 = 0.60,log 5 = 0.69)

1.  40 min

2.  45 min

3.  65 min

4.  70 min

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4
Correct Answer :

45 min


Explanation :
No Explanation available for this question

The fraction of total volume occupied by the atoms present in a simple cube is:

1.  π/6

2.  (π/3√2)

3.  (π/4√2)

4.  π/2

View Answer  
4
Correct Answer :

π/6


Explanation :
No Explanation available for this question

An element,X has the following isotopic composition; 200X:90% 199X:8.0% 202X:2.0% The weighted average atomic mass of the naturally-occurring element X is closest to:

1.  200 amu

2.  201 amu

3.  202 amu

4.  199 amu

View Answer  
4
Correct Answer :

200 amu


Explanation :
No Explanation available for this question
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