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Of the following metals which, one pollutes the air of a big
city?
1 Copper
2 Chromium
3 Lead
4 Cadmium
- 3 Answers
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What is range of sagarika?
Which of the following is commonly called a ‘polyamide’? 1 Rayon 2 Orlon 3 Terylene 4 Nylon
Define science
0 Answers Mahatma Gandhi University,
Marsh gas is 1 Hydrogen 2 Nitrogen 3 Methane 4 Ethane
Polythene is industrially prepared by the polymerization of 1 Methane 2 Styrene 3 Acetylene 4 Ethylene
3 Answers Amna Industries, HFI,
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
what are the sociological theories apply in pakistani society?
The type of glass used in making lenses and prisms is 1 Soft glass 2 Pyrex glass 3 Jena glass 4 Flint glass
Which of the following reagents gives a silver mirror test when added to aldehydes? 1 Fehling’s solution 2 Tollen’s Reagent 3 Ebaeyer’s Reagent 4 Nessler’s Reagent
HELPS IN PROPAGATING RADIO SIGNALS
What is the Botany?
What are vitamins ? describe different kinds of vitamins
Biological Sciences 
