Chemistry Which of the following fibres catches fire least ? Cotton Rayon Nylon Terricot Cotton Rayon Nylon Terricot ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is used to restore the colour of old oilpaintings ? Hydrogen peroxide Ozone Barium peroxide Sodium peroxide Hydrogen peroxide Ozone Barium peroxide Sodium peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The scientist who experimentally proved the existance of positron is Anderson Fermi Bethe Bohr Anderson Fermi Bethe Bohr ANSWER DOWNLOAD EXAMIANS APP
Chemistry Synthetic detergents are made from Sodium salt of benzene sulphonic acid Sodium salt of benzene carboxylic acid Sodium stearate Sodium palmitate Sodium salt of benzene sulphonic acid Sodium salt of benzene carboxylic acid Sodium stearate Sodium palmitate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who is known as the 'father of modern chemistry' John Dalton Democritus Robert Boyle Antoine Lavoisier John Dalton Democritus Robert Boyle Antoine Lavoisier ANSWER DOWNLOAD EXAMIANS APP
Chemistry The compound used in pricklyheat powder to prevent excessive sweating is Boric acid Carbonic acid Phosphoric acid Sulphuric acid Boric acid Carbonic acid Phosphoric acid Sulphuric acid ANSWER DOWNLOAD EXAMIANS APP