What is the correct answer?


All the atoms of the world comprise of electrons, proton & neutron except that of __________ atom in which neutron is absent.

A. Deuterium

B. Hydrogen

C. Neon

D. Helium

Correct Answer :

B. Hydrogen

Related Questions

Which of the following can be manufactured using powder metallurgy techniques? Presence of nickel & chromium in steel does not raise its Highest cutting speed is achieved by the __________ tool material. Spark plug is provided in a/an Which of the following is not categorised as the ore agglomeration process? The most important consideration in value engineering is the Catalyst used in the catalytic converter employed in automobiles to convert… One ton of refrigeration is not equivalent to the heat removal rate of Ammonia gas can be dried by Temperature profile along the length of a gasgas counter flow heat exchanger… A dense structure of grinding wheel is not used for the Nickel and __________ are the alloying element added in steel to increase… The ratio of the shear stress to the principal stress on a principal plane… The noble metals Powder metallurgy technique is used in the production of __________ tools. The approximate height of a blast furnace having a useful volume of 2000… In __________ process, there is an increase in entropy with no degradation… Temperature attained in soldering of metals is about __________ °C. The unit of gc is Potable water means the water used for Corona discharge is related to the operation of a/an Unit of viscosity in CGS system is The most serious manufacturing defect from fracture toughness point of… Metal cutting by oxy-acetylene flame is accomplished by the __________… The __________ of a double acting reciprocating pump as compared to the… The delivery pressure of boiler feed water pump compared to the boiler… Steel & cast iron pipes are produced by __________ casting. CANDU type nuclear reactor using natural uranium as fuel is the extensively… While the bin cards are used in the effective stores management, the queuing… An alloy of Fe - 0.4 % C is