Fructose contains functional group-
(a) Aldehyde
(b) Ketone
(c) Carboxylic acid
(d) primary amine
(a) Aldehyde
(b) Ketone
(c) Carboxylic acid
(d) primary amine
(b) Ketone
The anomeric carbon in D(+) glucose is –
(a) C-1 carbon
(b) C-2 carbon
(c) C-5 carbon
(d) C-6 carbon
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
A compound X with the molecular formula \(C_2\)\(H_8\)O can be oxidised to another compound Y whose molecular formulae is \(C_3\)\(H_6\)\(O_2\). The compound X may be
(a) \(CH_3\)\(CH_2\)\(OCH_3\).
(b) \(CH_3\)\(CH_2\)CHO.
(c) \(CH_3\)\(CH_2\)\(CH_2\)OH.
(d) \(CH_3\)\(CHOHCH_3\).
Which of the following is incorrect for an ideal solution?
(a) \(∆H_{mix}\) =0
(b) \(∆V_{mix}\) = 0
(c) ∆P = \(P_{obs}\) – \(P_{calculated}\) = 0
(d) \(∆G_{mix}\) = 0
The letter ‘D’ in carbohydrates signifies-
(a) dextrorotatory
(b) configuration
(c) diamagnetic nature
(d) mode of synthesis
Which is the most reactive towards SN1 reaction –
a) \(C_6\)\(H_5\)\(CH_2\)Cl.
b) \(C_6\)\(H_5\)CH(\(C_6\)\(H_5\))Br.
c) \(C_6\)\(H_5\)CH(\(CH_3\))Br.
d) \(C_6\)\(H_5\)C(\(CH_3\))(\(C_6\)\(H_5\))Br.
An unknown alcohol is treated with “Lucas reagent” to determine whether the alcohol is primary, secondary or tertiary. Which alcohol reacts fastest and by what mechanism?
(a) Tertiary alcohol by SN2.
(b) Secondary alcohol by SN1.
(c) Tertiary alcohol by SN1.
(d) Secondary alcohol by SN2.
What would be the reactant and reagent used to obtain 2, 4-dimenthyl pentan-3-ol?
(a) Propanal and propyl magnesium bromide.
(b) 3-methylbutanal and 2-methyl magnesium iodide.
(c) 2-dimethylpropanone and methyl magnesium iodide.
(d) 2-methylpropanal and isopropyl magnesium iodide.
Graphite cannot be classified as __________.
(A) Conducting solid
(B) Network solid
(C) Covalent solid
(D) Ionic solid