Sucrose is a ———————chemical, and the hydrolysis product combination is ———— in nature.
(a) dextrorotatory; dextrorotatory
(b) laevorotatory; laevorotatory
(c) laevorotatory; dextrorotatory
(d) dextrorotatory; laevorotatory
(d) dextrorotatory; laevorotatory
Which of the following statements about maltose is incorrect?
(a) It consists of two glucopyranose units
(b) It is a disaccharide
(c) Glycosidic bond between C1 of one unit and C4 of the other unit
(d) It is a non-reducing sugar
(d) It is a non-reducing sugar
Which of the following statements about starch is incorrect?
(a) It gives blue colour with iodine
(b) It is a polymer of ∝-D-glucose
(c) It is a reducing carbohydrate
(d) It consists of branched chains
(c) It is a reducing carbohydrate
RNA lacks the nitrogen base of ……………
(a) Thymine
(b) Cytosine
(c) Uracil
(d) Adenine
(a) Thymine
When converting a disaccharide to monosaccharides, which bond is hydrolyzed?
(a) Disulfide bond
(b) Glycosidic bond
(c) Phosphodiester bond
(d) Hydrogen bond
(b) Glycosidic bond
Which of the following statements about coordination compounds’ bonding is incorrect?
(a) Crystal Field Theory
(b) VSEPR Theory
(c) Valence Bond Theory
(d) Molecular Orbital Theory
The VSEPR Theory uses electron pairs in atoms to explain the structure of particular Molecules. The theories VBT, CFT, LFT, and MOT explain the nature of bonding in coordination Compounds.
Determine the proper name for K2[PdCl4).
(a) Potassium tetrachlorinepalladium(I)
(b) Potassium tetrachloridopalladate(|I)Potassium
(c) Potassium tetrachloridopalladium(II)
(d) tetrachlorinepalladate (II)
Because Cl is an anionic ligand, it has the suffix -o, therefore chlorido. Furthermore, because The complex ion is anionic, the metal must end in -ate, so palladate.
Which substance is used to determine the hardness of water using a simple titration?
(a) Mg(EDTA)
(b) Fe(EDTA)
(c) Na(EDTA)
(d) Co(EDTA)
With EDTA, the ions Ca and Mg* form stable complexes, and the difference in the stability Constants of the Ca and Mg complexes aids in the assessment of water hardness.
The core atom of which of the following biologically significant coordination molecules is magnesium?
(a) Vitamin B12
(b) Haemoglobin
(c) Chlorophyll
(d) Carboxypeptidase-A
Chlorophyll is a coordination molecule of magnesium that is found in plants and is important for photosynthesis.
According to IUPAC nomenclature sodium nitroprusside dihydrate is named as
(a) Sodium pentacyanonitrosylferrate (I)
(b) Sodium nitroferrocyanide
(c) Sodium nitroferricyanide
(d) Sodium pentacyanonitrosylferrate (II)
(a) Sodium pentacyanonitrosylferrate (I).