Inventions Until Victorian times, chocolate was thought of as a drink. When did the first chocolate bar appear? 1825 There is no sure date 1831 1828 1825 There is no sure date 1831 1828 ANSWER DOWNLOAD EXAMIANS APP
Inventions Who among the following invented the small pox vaccine? Robert Koch Edward Jenner Robert Hooke Louis Pasteur Robert Koch Edward Jenner Robert Hooke Louis Pasteur ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented the BALLPOINT PEN? Waterman Brothers Write Brothers Bicc Brothers Biro Brothers Waterman Brothers Write Brothers Bicc Brothers Biro Brothers ANSWER DOWNLOAD EXAMIANS APP
Inventions Who invented Bakelite? Roy Plunkett Charles Goodyear Henry Ford Leo Hendrik Baekeland Roy Plunkett Charles Goodyear Henry Ford Leo Hendrik Baekeland ANSWER DOWNLOAD EXAMIANS APP
Inventions Who synthesized the first wholly artificial gene? J.J. Thompson Benjamin Franklin Meghnad Saha Hargobind Khorana J.J. Thompson Benjamin Franklin Meghnad Saha Hargobind Khorana ANSWER DOWNLOAD EXAMIANS APP
Inventions What invention was first installed at a Hartford, Connecticut bank in 1889? Burglar alarm Time-lock safe Automatic teller machine Pay telephone Burglar alarm Time-lock safe Automatic teller machine Pay telephone ANSWER DOWNLOAD EXAMIANS APP