Consider the following orders :
(1) H2SO4 H2SO3 : Boiling point
(2) H2O HF : Extent of H-bond
(3) H2O HCl HBr : Melting point
(5) para-dichlor

Question

Consider the following orders :
(1) H2SO4 > H2SO3 : Boiling point
(2) H2O > HF : Extent of H-bond
(3) H2O < H2O2 : Strength of H-bond
(4) HF > HCl > HBr : Melting point
(5) para-dichlorobenzene > ortho-dichlorobenzene : Boiling point
(6) Ethylene glycol > Phenol : Viscosity
(7) 1, 3-Dichlorobenzene > 1, 3, 5-Trichlorobenzene : Strength of molecular force
(8) ortho-Hydroxy benzoic acid > para-Hydroxy benzoic acid : Solubility in water.
Then calculate value of \

Prashant Kotian · Accepted Answer

Correct answer: X^2\. Step 1: The reaction of sodium borohydride (NaBH4) with boron trifluoride (BF3) in anhydrous ether solvent is a standard laboratory preparation for diborane gas. Step 2: The balanced chemical reaction is: 3NaBH4 + 4BF3 -> 2B2H6 + 3NaBF4. Step 3: Since diborane (B2H6) is the only gaseous product generated at room temperature under these conditions, the correct option is (c).

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