0.005M K2Cr2O7 solution for calibration of UV.why 0.005M
K2Cr2O7?
why we are not measure the turbidity in mg/lit?
Rust is 1 A mixture of Fe2O3 and Fe(OH)3 2 A mixture of FeO & Fe(OH)2 3 Fe2O3 only 4 A mixture of Fe2O3.3H2O and Feo
Water gas is prepared by passing 1 Steam over white-hot coke 2 Air over red-hot coke 3 Methane over red-hot coke 4 Steam over heated sulphur
The pink color of Bayer’s reagent is discharged when acetylene is passed through it. This is due to the formation of 1 Acetic acid 2 Ethylene 3 Water 4 Oxalic acid
The element required for solar energy conversion is 1 Beryllium 2 Silicon 3 Tantalum 4 Ultra pure carbon
When was the administration control of terls enstrusted to physcial research laboratory, ahmedabad?
What is the Embrylogy ?
Which of the following metals remains in liquid form under normal conditions? 1 Uranium 2 Radium 3 Zinc 4 Mercury
in earth 1degree equals how many kilo meters?
Which are the important pulsating nebulae?
Why is it necessary to cook food ?
How can i describe the blood?