41.

18 g of glucose (C₆H₁₂O₆) is added to 178.2 g of water. The vapour pressure of water for this aqueous solution at 100^o C is

• 759.00 Torr

• 7.60 Torr

• 76.00 Torr

• 76.00 Torr

HBr reacts with CH₂ = CH – OCH₃ under anhydrous conditions at room temperature to give 

• CH₃CHO and CH₃Br

• BrCH₂CHO and CH₃OH

• BrCH₂ – CH₂ – OCH₃

• H₃C – CHBr – OCH₃

The IUPAC name of the compound shown below is

• 2-bromo-6-chlorocyclohex-1-ene

• 6-bromo-2-chlorocyclohexene

• 3-bromo-1-chlorocyclohexene

• 3-bromo-1-chlorocyclohexene

The increasing order of the rate of HCN addition to compounds A – D is
(A) HCHO
(B) CH3COCH3
(C) PhCOCH3
(D) PhCOPh

• A < B < C < D

• D < B < C < A

• D < C < B < A

• D < C < B < A

The term anomers of glucose refers to

• isomers of glucose that differ in configurations at carbons one and four (C-1 and C-4)

• a mixture of (D)-glucose and (L)-glucose

• enantiomers of glucose

• enantiomers of glucose

Phenyl magnesium bromide reacts with methanol to give

• a mixture of anisole and Mg(OH)Br

• a mixture of benzene and Mg(OMe)Br

• a mixture of toluene and Mg(OH)Br

• a mixture of toluene and Mg(OH)Br

The pyrimidine bases present in DNA are

• cytosine and adenine

• cytosine and guanine

• cytosine and thymine

• cytosine and thymine

Among the following the one that gives positive iodoform test upon reaction with I₂ and NaOH is 

• CH₃CH₂CH(OH)CH₂CH₃

• C₆H₅CH₂CH₂OH

• 
• 

Fluorobenzene (C₆H₅F) can be synthesized in the laboratory

•  by heating phenol with HF and KF

• from aniline by diazotisation followed by heating the diazonium salt with HBF₄

• by direct fluorination of benzene with F₂ gas

• by direct fluorination of benzene with F₂ gas

The correct order of increasing acid strength of the compounds

• b < d < a < c

• d < a < c < b

• d < a < b < c

• d < a < b < c