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