General chemistry quiz

An optically active organic compound must

• Have a plane of symmetry

• Have a chiral carbon

• Have a Plane of polarization

• Rotate plane polarized light

Solubility of NaCl in water can be best explained because of

• Hydrolysis

• Ion dipole interaction

• Induced dipole dipole interaction

• High lattice energy of NaCl

Identify the structure shown in the picture

• Chlorophyll

• Vitamin B12

• Cyanocobalamin

• None of the above

What are the classification of polymer based on molecular forces

• Homomer, co-polymer

• Thermosetting, thermoplastic, elastomers

• Addition condensation

• Linear , branched, crosslinked

What is the PH level of K2SO4

• 7

• 14

• 2

• 9

What happens when iron is added to copper sulphate solution

• No changes

• The Blue Colored copper sulphate changes into black colored iron sulphate

• The grey solid changes into a reddish-brown color

• Copper sulphate losses all its water of cystallization