Chemistry Basic Concept

A. Enzymes
B. Nitrogenous bases
C. Carbohydrates
D. Lipids

A. Carbon
B. Arsenic
C. Nitrogen
D. Sulphur

A. fats
B. resins
C. iodine
D. all the above

A. 0?C
B. 273.16K
C. ?273.16 K
D. ?273.16?C

A. phenol is unsaturated
B. 2-bromophenol is insoluble in water
C. a hydroxy group makes the benzene ring more susceptible to electrophilic attack
D. acid-base reaction

A. alkaline aquenous iodine
B. aqueous bromine
C. Fehling solution
D. aqueous NaOH

A. n2a/v correct for the intermolecular forces.
B. nb correct for the volume occupied by gas molecules.
C. at high densities the equation reduces to the ideal gas law
D. all of the above statements are correct.

A. Quantum structure
B. Secondary structure
C. Tertiary structure
D. Primary structure

A. Pb3 O4
B. 2Pb CO3 – Pb (OH)2
C. Pb Cr O4 – Pb (OH)2
D. Pb2O

A. IIIA group
B. IVA group
C. VA group
D. VIA group