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