Download App

STD 11 - 8.3. Organic chemistry purification and characterization — JEE STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceJEESTD 11 - 8.3. Organic chemistry purification and characterization4 Marks
MCQ
Which of the following statement is correct ?
  • A
    $\alpha  - D-$ glucose & $\beta  - D - $ glucose are enantiomers
  • B
    Glycine is optically active.
  • C
    Cellulose on hydrolysis yields $\alpha  - D-$ glucose
  • ✓
    In Duma's method nitrogen present in compound is estimated as $N_2$
✓

Answer

Correct option: D.
In Duma's method nitrogen present in compound is estimated as $N_2$
d

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

JEE STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Ferrous ammonium sulphate aqueous solution consist of
→
$\xrightarrow[\Delta ]{{alc.\,KOH}}$ product
→
The heat of neutralisation will be highest in
→
Among the following oxide of $\mathrm{p}$ - block elements, number of oxides having amphoteric nature is

$\mathrm{Cl}_2 \mathrm{O}_7, \mathrm{CO}, \mathrm{PbO}_2, \mathrm{~N}_2 \mathrm{O}, \mathrm{NO}, \mathrm{Al}_2 \mathrm{O}_3, \mathrm{SiO}_2, \mathrm{~N}_2 \mathrm{O}_5,\mathrm{SnO}_2$

→
When an acyl chloride is heated with $Na$ salt of a carboxylic acid, the product is
→
Mass of methane required to produce $22 \mathrm{~g}$ of $\mathrm{CO}_2$ after complete combustion is ___________$g.$ (Given Molar mass in $g$ mol-1 $\mathrm{C}=12.0$  $ \mathrm{H}=1.0 $  $ \mathrm{O}=16.0)$
→
Among the following species$N _{2}, N _{2}^{+}, N _{2}^{-}, N _{2}{ }^{2-}, O _{2}, O _{2}{ }^{+}, O _{2}^{-}, O _{2}{ }^{2-}$ the number of species showing diamagnetism is.
→
The solution of a chemical compound reacts with $AgNO_3$ solution to form a white preciptate of $Y$ which dissolves in $NH_4OH$ to give a complex $Z$. When $Z$ is treated with dilute $HNO_3$, $Y$ reappears. The chemical compound $X$ can be:
→
Alkanes can be made by electrolysis of aquesus solution of potassium salt of carboxylic acid. Find the weight of all gases evolved at $STP$ by passing $20\  amp$ current for $9650\  sec$ during elctrolysis of $CH_3COO^-K^+(aq)$ reaction .......... $\mathrm{g}$ [Ignore parallel or side reaction]
→
The enthalpy of combustion at $25\,^o C $ of $H_2$, cyclohexane $(C_6H_{12})$  and cyclohexene $(C_6H_{10})$  are $-241, -3920 $ and $-800\ KJ / mole$  respectively. The heat of hydrogenation of cyclohexene is.....$KJ / mole$
→