- (A) oxygen
- (B) carbon
- (C) tin
- (D) chlorine
Chemistry Mcqs
- (A) 0.18 mole
- (B) 0.27 mole
- (C) 0.24 mole
- (D) 0.09 mole
- (A) formula unit
- (B) empirical formula
- (C) molecular formula
- (D) formula mass
- (A) 280
- (B) 300
- (C) 154
- (D) 54
- (A) 6.022 x 1023 atoms of oxygen
- (B) 22-gram electrons
- (C) 6.022 x 1023 atms of carbon
- (D) both
- (A) Isotopes with odd atomic number are abundant
- (B) Isotopes with odd atomic number and even mass number are abundant
- (C) Isotopes with even atomic number and even mass number are abundant
- (D) Isotopes with even atomic number and odd mass no are abundant
- (A) 1-mole molecules of water
- (B) 1-gram molecule of water
- (C) 3-gram atoms
- (D) all
- (A) CH2 C12
- (B) CH3C1
- (C) CC14
- (D) CHCL3
- (A) Relative abundance
- (B) Average mass of element
- (C) Number of isotopes
- (D) Relative isotopic mass
- (A) Atomic number
- (B) Relative abundance
- (C) Electronic configuration
- (D) All of the above
