The gases used in different types of welding would include
1 Oxygen and hydrogen
2 Oxygen, acetylene and argon
3 Oxygen and acetylene
4 None of these
why nitrogen is about 70%(i.e.)highest percentage in environment
tea will coll most easily in a:
In laundry soaps, a material called ‘filler’ is used. Which of the following is a ‘filler? 1 Talc 2 Sodium silicate 3 Soda ash 4 Sodium phosphate
Carbon, diamond and graphite are together called 1 Isomers 2 Allotropes 3 Isomorphs 4 Isotopes
Soap is a mixture of sodium or potassium salts of 1 Monocarboxylic acids 2 Glycerol’s 3 Dicarboxylic acids 4 Tricarboxylic acids
Which of the following is a chemical change? 1 Oxidation 2 Reduction 3 Sublimation 4 Decomposition
Among the various allogropes of carbon 1 Diamond is the hardest, lamp black is the softest 2 Diamond is the hardest, coke is the softest 3 Coke is the hardest, graphite is the softest 4 Diamond is the hardest, graphite is the softest
When and by whom was the meteorological unit founded in bangalore science institute?
what are disadvantages of interrupt and exception?
Which of the following materials are used for preparing blur-black ink? 1 Gallic acid 2 Tannic acid 3 Ferrous sulphate 4 All of these
i done G.N.M(General Nursing & Midwifery) so Howmany Sellery i will Get. And Which post in Hospital.
Where did the largest reflector telescope situated?