One Metric ton is equal to ……………………… kg.
A). 10000
B). 1000
C). 100
D). 0.001

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Hint – In this question use the relationship between metric ton and pound that is 1 metric ton = 2204 pounds and 2204 pound is equal to 1000Kg. This will get the right answer for this problem statement.

Complete step-by-step solution -
As we all know 1 ton = 2000 pounds = 907.18 Kg.
But 1 metric ton = 2204 pounds = 1000 Kg.
The metric ton is officially called as tonne (i.e. S.I standards called it as tonne), but the U.S government recommends to call it as metric ton.
The metric ton derived from the term tun, denoting a large amount of barrel used in the wine trade and named from the French tonnerre, or thunder.
So the weight in the metric tons is equal to the ratio of the weight in the kilograms to 1000.
For example: If we have to convert 400 kilogram into metric tons.
So 400 kilogram in metric ton = (400/1000) = 0.4 metric ton.
1 metric ton = 1000 Kg, and we all know 1 Kg = 1000 gram.
So 1 metric ton = 1000(1000) gram = ${10^6}$gram = 1 megagram.
So 1 metric ton = 1000 Kg = ${10^6}$gram = 1 megagram.
So this is the required answer.
Hence option (B) is the required answer.

Note – The trick point here in this question is that one must not confuse ton with metric ton as both are different quantities of measurement and have different conversion into pound and Kg respectively. SI units are known as international systems of units, it is a system of physical units based upon the meter, kilogram, second, ampere, kelvin, candela and mole together with a set of prefixes to indicate the multiplication or division by a power of 10.