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Which one of the following molecular hydrides acts as a Lewis acid? [2010]
  • a)
    NH3
  • b)
    H2O
  • c)
    B2H6
  • d)
    CH4
Correct answer is option 'C'. Can you explain this answer?
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Which one of the following molecular hydrides acts as a Lewis acid? [2...
Boron in B2H6 is electron deficient
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Which one of the following molecular hydrides acts as a Lewis acid? [2...
Ans is b2h6 because nh3 have one lone pair; h20 have also 2 lone pairs and ch4 have complete octet.but b2h6 needs more electron to complete its octet as boron has only 3 v.e when these 6 v.e from two boron combine with 6 hydrogen;total electrons will be 6 for each of them.and thus it needs 2 more electrons to complete its octet and behaves as lewis acid.b2h6 have special type of bond named banana bond.
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Which one of the following molecular hydrides acts as a Lewis acid? [2...
B2H6 (diborane) act as Lewis acid cause it has two 3 centered 2 e- bonds (two bridge bond/ banana bond/e- deficient bond) hence,it reacts with e- rich molecules like the and work as Lewis acid.
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Attempt All sub parts from each question.Molecular Perspective In water, there are two types of molecules. Some molecules are at the surface, called exterior molecules, and some molecules are inside, called interior molecules. The interior molecules are attracted to all the molecules around them. The exterior molecules are attracted to only the other surface molecules and to those below the surface. So that the energy state of the molecules on the interior is much lower than that of the molecules on the exterior. The molecules always try to maintain a lower energy state and hence the exterior molecules experience a downward force. This force is known as cohesive force. As a result they try to maintain a minimum surface area, thus allowing more molecules to have a lower energy state. Thus surface tension is created. The water molecules attract one another due to the water molecule’s polar property. The hydrogen ends, which are positive in comparison to the negative ends of the oxygen, cause water to "stick " together. This is why there is surface tension. Water has very high surface tension. It is 72.8 milli newton per meter at 20°C.Q. Which one of the following is the correct molecular structure of water molecule?

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Which one of the following molecular hydrides acts as a Lewis acid? [2010]a)NH3b)H2Oc)B2H6d)CH4Correct answer is option 'C'. Can you explain this answer?
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