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