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