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