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