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