Which one of the following statements is not true regarding (+) lactose?

1.  (+) lactose is a $\mathrm{\beta }$-glycoside and a molecule of D(+) galactose

2.  (+) lactose is a reducing sugar and does not exhibit mutarotation

3.  (+) lactose, ${\mathrm{C}}_{12}{\mathrm{H}}_{22}{\mathrm{O}}_{11}$ contains 8-0 H groups

4.  On hydrolysis (+) lactose gives equal amount of D(+) glucose and D(+) galactose

Which one of the following sets of monosaccharide forms sucrose?

1. $\alpha D - galactopyranose and \alpha D- glucopyranose$

2. $\mathrm{\alpha }$ D-glucopyranose and a $\mathrm{\beta }$-D-fructofuranose

3. $\beta D - galactopyranose and \alpha D- fructofuranose$

4. $\alpha D - galactopyranose and \beta D- fructopyranose$

The correct corresponding order of names of four aldoses with configuration given below respectively, is

1.  L-erythrose, L-threose, L-erythrose, D-threose

2.  D-threose, D-erythrose, L-threose, L-erythrose

3.  L-erythrose, L-threose, D-erythrose, D-threose

4.  D-erythrose, D-threose, L-erythrose, L-threose

The difference between amylose and amylopectin is

1. Amylopectin have $1\to 4\mathrm{\alpha }$ - linkage and $1\to 6\mathrm{\alpha }$ - linkage

2. Amylose have $1\to 4\mathrm{\alpha }$- linkage and $1\to 6\mathrm{\beta }$ - linkage

3. Amylopectin have $1\to 4\mathrm{\alpha }$ - linkage and $1\to 6\mathrm{\beta }$ - linkage

4. Amylose is made up of glucose and galactose

Which one of the following compounds will form an osazone derivative ?
1. CH₃CH₂COCH₂OH
2. CH₃COCH₂CH₂OH
3. CH₃CH₂CHOHCH₂OH
4. CH₃CH₂COCH₂OCH₃

How many moles of HIO₄ is required to break down the following molecule?

1. 1

2. 2

3. 3

4. 4

Number of Chiral carbon atoms in cyclic b-D(+)-glucose is

1. 5

2. 4

3. 3

4. 2

Glucose and Mannose are

1. C₁ epimers

2. Anomers

3. C₂ epimers

4. C₄ epimers