Who discovered the blood groups of man?
- (A) J. C. Bose
- (B) Kari Landsteiner
- (C) Robert Koch
- (D) Louis Pasture
- (B) Kari Landsteiner
Carbon dioxide was discovered by:
- (A) Priestly
- (B) Wheeler
- (C) Fisher
- (D) Soddy
- (C) Fisher
Whose discoveries are aluminum and electrolytic process?
- (A) Bell
- (B) Hall
- (C) Marconi
- (D) Faraday
- (B) Hall
What is the discovery of Nicolle?
- (A) Radium
- (B) Ozone
- (C) X-rays
- (D) Typhus Vaccine
- (D) Typhus Vaccine
Who is known for his invention of mobile phone (in 1973)?
- (A) William Caxton
- (B) Martin Cooper
- (C) James Russell
- (D) Robert Hock
- (B) Martin Cooper
Who was the inventor of vacuum cleaner?
- (A) Gugliemo Marconi
- (B) Frank Whittle
- (C) Hurbert Cecil Booth
- (D) John Logi Baird
- (C) Hurbert Cecil Booth
Who invented dynamite?
- (A) Alfred Nobel
- (B) Thomas Edison
- (C) Marie Curie
- (D) Graham Bell
- (A) Alfred Nobel
Name the inventor who synthesized Nylon for the first time?
- (A) L.H. Baekeland
- (B) Frank Whittle
- (C) Wallace Carothers
- (D) Wilhelm Einthoven
- (C) Wallace Carothers
Who discovered radium?
- (A) Henri Becquerel
- (B) Marie Curie
- (C) James Watt
- (D) Alfred Nobel
- (B) Marie Curie
The wonder material ‘Bakelite’ was invented (in 1907) by:
- (A) Cecil Booth
- (B) Edmund Cartwright
- (C) Leo Baekeland
- (D) Marry Anderson
- (C) Leo Baekeland