An element which is preserved under water is
White phosphorus undergoes spontaneous combustion when exposed to air. In order to prevent this spontaneous ignition, it is preserved under water.
A ‘breath test’ used by traffic police to check drunken driving uses ____?
The enzyme that converts glucose to ethyl alcohol is
The presence or absence of hydroxy group on which carbon atom of sugar differentiates RNA and DNA ?
RNA has hydroxy group attached at the 2nd C-atom while DNA does not.
'Minamata' disease was caused by ?
Which one of the following orders presents the correct sequence of the increasing basic nature of the given oxides?
While moving from left to right in periodic table basic character of oxide of elements will decrease.
and while descending in the group basic character of corresponding oxides increases.
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