- (A) Ch3
- (B) OH
- (C) OCH3
- (D) O2
Chemistry Mcqs
- (A) Beryllium
- (B) Carbon
- (C) Silicon
- (D) Aluminium
- (A) As antiseptic in medicine
- (B) For washing eyes
- (C) In soda bottles
- (D) For enamel and glazes
- (A) it combines with H2O to form carbonic acid
- (B) it reacts with red blood cells of haemoglobin
- (C) it is powerful oxidizing agent
- (D) it is used to prepare aerated drinks
- (A) carbon is non-metal while silicon is semi-metal
- (B) CO2 is an independent molecule while SiO2 has network covalent structure
- (C) CO2 forms multiple bond while silicon does not form multiple bonds
- (D) Silicon has all sigma bonds
- (A) Lubricants
- (B) Hydraulic brakes
- (C) Antifreeze
- (D) Water repellent
- (A) Na2B4O7.4H2O
- (B) Na2B4O7.5H2O
- (C) Na2B4O7.2H2O
- (D) Na2B4O7.10H2O
- (A) Hall process
- (B) Thermite process
- (C) Haber process
- (D) Contact process
- (A) Si
- (B) Ge
- (C) Se
- (D) Sn
- (A) A1
- (B) Si
- (C) B
- (D) C
