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