The temperature of oxy-acetylene flame is ________.

Q. Assertion :Oxy hydrogen blow torch is used for welding. Reason: The temperature produced here is above 2000${}^{\circ }$C.

Q. During gas welding of steel using Oxy- acetylene Neutral flame, the acetylene consumed is 10 liters. The total oxygen consumption is ______liters.

Q. For gas welding, a particular job using a neutral oxy acetylene flame the acetylene consumption from the cylinder in litres. The oxygen consumption from the cylinder in litres will be

Q. The following table gives the life time of 200 neon lamps. Find the median class.