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Which of the following is used for removing air bubbles from
glass during its manufacture?
1 Feldspar
2 Arsenious oxide
3 Potassium carbonate
4 Soda ash
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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
Wood is the main raw material for the manufacture of 1 Paint 2 Paper 3 Ink 4 Gun powder
5 Answers Jharkhand Staff Selection Commission JSSC, RRB,
What is the wavelength of visible spectrum? 1 1300A-3000A 2 3900A-7600A 3 7800A-8000A 4 8500A-9800A
What is the life cycle ?
why nitrogen is about 70%(i.e.)highest percentage in environment
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
Combustion is the process in which 1 Heat is produced 2 Light is produced 3 Heat and light are produced 4 None of these
When was the atomic energy regulatory board ( aerb ) constituted?
who is the father of sex?
What are all of the uses for a dynamo?
Which of the following is a chemical change? 1 Oxidation 2 Reduction 3 Sublimation 4 Decomposition
The percentage of carbon is the least in 1 Grey cast iron 2 Wrought iron 3 White cast iron 4 Steel
Biological Sciences 
