Which of the following alloys is used for making magnets?
1 Duralumin
2 Stainless steel
3 Alnico
4 Magnalium
Which of the following are the ingredients of gun metal? 1 Iron, Tin 2 Copper, Tin 3 Iron, Brass, Tin 4 Iron, Zinc, Titanium
Which of the following gases is not known as green house gas? 1 Carbon dioxide 2 Methane 3 Nitruous oxide 4 Hydrogen
4 Answers ACIO, Infosys, ptet,
The gas usually filled in the eletric h\bulb is 1 Hydrogen 2 Oxygen 3 Nitrogen 4 Carbon dioxide
Which of the following is the lightest gas? 1 Nitrogen 2 Hydrogen 3 Ammonia 4 Carbon dioxide
where the 3rd earthsummit held
What are comets?
What are the aluminium alloys that you supply?
An element that does not occur in nature but can be produced artificially is 1 Thorium 2 Radium 3 Plutonium 4 Uranium
Which of the following metals can displace hydrogen from dilute acids? 1 Zinc 2 Gold 3 Copper 4 Silver
Which of the following colors in he visible spectrum has maximum range? 1 Violet 2 Indigo 3 Orange 4 Red
what are advantages & disadvantages of science?
Which synthetic fiber is known as artificial silk? 1 Cotton 2 Rayon 3 Terylene 4 Nylon