A) g/mol B) mol/dm-3 C) dm3 D) mol/dm3
A) How much substance is dissolved B) The way a solute dissolves C) The variation of solubility of a substance with temperature D) The variation of solubility of a substance with volume
A) But-2-yne B) But-2-ene C) Butane D) But-1-yne
A) Alkanols B) Alkanes C) Alkenes D) Alkynes
A) RCOONa B) C3H5(OH)_3 C) C2H4 D) C3H5(OOCR)_3
A) Salt solution B) Baking soda C) Distilled water D) Palm oil
A) Toilet soap B) Water soap C) Transparent soap D) Hard soap
A) Soap foam B) Hydrophobic tails C) Hydrophilic heads D) Soap molecules
A) Hydrophilic heads B) Hydrophobic tails C) Micelles D) Soap molecules
A) Petroleum hydrocarbons B) Dried soaps C) Ashes D) Baking soda
A) Shampoos B) Bathing C) Emulsifying oils D) Shaving creams
A) Laundry powders B) Shampoos C) Dishwashing liquids D) Shaving creams
A) 1/1840 unit B) 4 units C) 6 units D) No mass
A) +2 B) +1 C) -1 D) It has no charge.
A) 1 B) 100 C) 10 D) 10 000
A) Why B) If C) How fast or slow D) How much
A) Iodine B) Chlorine C) Fluorine D) Tin
A) Greenish yellow gas B) Pale yellow gas C) Grey crystalline solid D) Reddish brown liquid
A) Oxygen gas B) Hydrogen gas C) Trioxonitrates D) Oxides, peroxides, superoxides.
A) Magnesium B) Calcium C) Radium D) Strontium
A) Oxygen gas B) Hydrogen gas C) Carbon dioxide D) Nitrogen gas
A) p-block B) d-block C) s-block D) f-block
A) Cobalt B) Rubidium C) Nickel D) Iron
A) (n-1)d1-10ns0-2 B) They do not have electronic configuration C) (n-2)d1-10ns0-1 D) 1s2 2s2
A) -2 B) +6 C) +3 D) +2
A) Solid B) Big C) Much D) Pure
A) Oxygen B) Hydrogen C) Carbon D) Nitrogen
A) Pale yellow B) Orange C) Pale blue D) Red
A) Nitrogen B) Hydrogen C) Carbon dioxide D) Water
A) Calcium B) Carbon C) Nitrogen D) Hydrogen
A) Ionic halides B) Oxygen gas C) Hydrogen gas D) Oxides
A) Magnesium B) Strontium C) Barium D) Aluminium
A) Argon B) Iron C) Chromium D) Radium
A) Radium B) Iron C) Argon D) Calcium
A) Calcium B) Magnesium C) Argon D) Potassium
A) Radioisotopes B) Nuclei C) Rays D) Particles
A) NaCl B) Na2SO4 C) H2SO4 D) HCl
A) Branched B) Chained C) Straight D) Cyclic
A) Branched B) Linear C) Cyclic D) Chained
A) Fully B) None of the above C) Not D) Partly |