The anomeric carbon in D(+) glucose is –
(a) C-1 carbon
(b) C-2 carbon
(c) C-5 carbon
(d) C-6 carbon
(a) C-1 carbon
(b) C-2 carbon
(c) C-5 carbon
(d) C-6 carbon
(a) C-1 carbon
Fructose contains functional group-
(a) Aldehyde
(b) Ketone
(c) Carboxylic acid
(d) primary amine
The functional group which is found in amino acid is-
(a)-COOH
(b) -\(NH_2\)
(c) -\(CH_3\)
(d) both (a) and (b)
The letter ‘D’ in carbohydrates signifies-
(a) dextrorotatory
(b) configuration
(c) diamagnetic nature
(d) mode of synthesis
Which of the following factors is not responsible for the denaturation of proteins?
(a) Heat
(b) Charge
(c) pH change
(d) Organic solvents
RNA and DNA are chiral molecules. Their chirality is due to :
(a) Chiral bases
(b) Chiral phosphate ester units
(c) D-sugar component
(d) L-sugar component.
The reason for double helical structure of DNA is operation of-
(a) electrostatic attractions
(b) dipole-dipole interaction
(c) van der Waal’s forces
(d) hydrogen bonding
Order of esterification of alcohols are
(a) 3° > 1° > 2°.
(b) 2°> 3° > 1°.
(c) 1 ° > 2° > 3°.
(d) None of these.
Assertion: Glycine must be taken through diet.
Reason: It is essential amino acid.
A. Assertion and reason both are correct statements and reason is correct explanation for assertion.
B. Assertion and reason both are correct statements but reason is not correct explanation for assertion.
C. Assertion is correct statement but reason is wrong statement.
D. Assertion is wrong statement but reason is correct statement.
The anomeric carbon in D(+) glucose is –
(a) C-1 carbon
(b) C-2 carbon
(c) C-5 carbon
(d) C-6 carbon
Which of the following is an amorphous solid?
(A) Graphite (G)
(B) Quartz glass (SiO2)
(C) Chrome alum
(D) Silicon carbide (SiC)
The difference between the electrode potentials of two electrodes when no current is drawn through the cell is called ___________.
a. Cell potential.
b. Electromotive Force.
c. Potential difference.
d. Cell voltage.
Which stoichiometric defect does not change the density of the crystal?
(A) Frenkel defect
(B) Schottky defect
(C) Interstitial defect
(D) F-centres
The reaction R-Br + NaCN → R – CN + NaBr is an example of –
(a) Elimination Reaction.
(b) Nucleophilic Substitution.
(c) Electrophilic Substitution.
(d) Oxidation Reduction.