Chemistry Highly toxic gas which causes headache, visual difficulty, paralysis and even death is CO2 All of these O3 CO CO2 All of these O3 CO ANSWER DOWNLOAD EXAMIANS APP
Chemistry A powerful eye irritant present in smog is Carbon dioxide Nitric oxide Sulphur dioxide Peroxyacetyl nitrate Carbon dioxide Nitric oxide Sulphur dioxide Peroxyacetyl nitrate ANSWER DOWNLOAD EXAMIANS APP
Chemistry The Latin word formica means ant. The name formic acid is derived from this Latin word because this acid was first obtained by the distillation of ants this acid, in ancient times, was used to eliminate ant-hills ants are attracted by the odour of this acid this corrosive acid is secreted by ants to drive away their enemies this acid was first obtained by the distillation of ants this acid, in ancient times, was used to eliminate ant-hills ants are attracted by the odour of this acid this corrosive acid is secreted by ants to drive away their enemies ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a metal is heated in a flame, the electrons absorb energy and jump to higher energy state. On coming back to the lower energy siate, they emit light, which we can observe in Raman spectra Emission spectra Absorption spectra Fluorescence Raman spectra Emission spectra Absorption spectra Fluorescence ANSWER DOWNLOAD EXAMIANS APP
Chemistry The lustre of the metals is because of Reflection of light due to the presence of free electrons High polish Absorption of light due to the presence of cavities High density, due to closed packing of atoms Reflection of light due to the presence of free electrons High polish Absorption of light due to the presence of cavities High density, due to closed packing of atoms ANSWER DOWNLOAD EXAMIANS APP
Chemistry German silver used for making utensils is an alloy of Copper, silver, nickel Copper, nickel, aluminium Copper, zinc, aluminium Copper, zinc, nickel Copper, silver, nickel Copper, nickel, aluminium Copper, zinc, aluminium Copper, zinc, nickel ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS