Chemistry Dry powder fire extinguishers contain Sand and potassium carbonate Sand and sodium bicarbonate Sand and sodium carbonate Sand Sand and potassium carbonate Sand and sodium bicarbonate Sand and sodium carbonate Sand ANSWER DOWNLOAD EXAMIANS APP
Chemistry Detergents clean surfaces on the principle of Floatation Elasticity Surface tension Viscosity Floatation Elasticity Surface tension Viscosity ANSWER DOWNLOAD EXAMIANS APP
Chemistry For a spontaneous chemical process, the free energy change is Positive Negative Zero Depends on whether the reaction is exothermic or endothermic Positive Negative Zero Depends on whether the reaction is exothermic or endothermic ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who is known as the 'father of modern chemistry' Democritus Antoine Lavoisier John Dalton Robert Boyle Democritus Antoine Lavoisier John Dalton Robert Boyle ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone saves the biosphere by absorbing high energy radiations called ________ . Infra-red (IR) Gamma rays X–rays Ultraviolet rays (UV) Infra-red (IR) Gamma rays X–rays Ultraviolet rays (UV) ANSWER DOWNLOAD EXAMIANS APP
Chemistry The nucleus of an atom consists of electrons and neutrons protons and neutrons All of these electrons and protons electrons and neutrons protons and neutrons All of these electrons and protons ANSWER DOWNLOAD EXAMIANS APP
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