0.005M K2Cr2O7 solution for calibration of UV.why 0.005M
K2Cr2O7?
Which of the following shows the masses of three elementary particles in decreasing order? 1 Mesons, Baryons, Leptons 2 Leptons, Baryons, Mesons 3 Baryons, Mesons, Leptons 4 Leptons, Mesons, Baryons
Which of the following is not an isotope of hydrogen? 1 Protium 2 Yitrium 3 Deuterium 4 Tritium
Rayon is chemically 1 Glucose 2 Amylase 3 Cellulose 4 Pectin
Actinides are the elements with atomic numbers from 1 36 to 43 2 89 to 103 3 97 to 114 4 101 to 115
The group of metals Fe, Co, Ni may be best called as 1 Alkali metals 2 Rare metals 3 Main group metals 4 Transition metals
1.how many bones are there in our human body? 2.who invented the aeroplane? 3.the full form for h2o is water 4.the name which is heavier is gold 5.name the symtom which is to cure for night blindness?
what are the sociological theories apply in pakistani society?
Who invented telescope?
Chemical change does not take place in case of 1 Souring of milk into curd 2 Rusting of iron in atmosphere 3 Burning of magnesium ribbon in air 4 emitting of light by a red hot platinum wire
3 Answers Banking, Eastern Railway,
Why we use nhexane inplace of hexane in mobilepase preparation
An atom of an element with mass number 23 and atomic number 11 will have 1 11 neutrons, 12 protons and 11 electrons 2 11 protons, 12 neutrons and 11 electrons 3 11 neutrons, 11 protons and 12 electrons 4 23 protons and 11 electrons
Where Meson particles are found in ?