Question
The speed of a boat in still water is 10 km/hr. It
covers (upstream) a distance of 36 km in 5 hours. The speed (in km/hr) of the stream isSolution
Upstream speed of boat = Distance/Time = 36/5 = 7.2 km/hr Therefore, speed of current = 10 – 7.2 = 2.8 km/hr
The Polymer used for Electrical insulation buttons is
Lewis Acid is a species (charged or uncharged) which can accept a pair of
Ultra-purification of metals is achieved using:
Which one of the following is not a ‘Greenhouse Gas’?
What did Archimedes determine after discovering the Archimedes principle?
Which of the Following is not the Ore of Aluminium ?
What is the Chemical name of Chromic Acid?
Which of the following is NOT a d-block element?Â
The combining power of an element is called its:
What is the total number of carbon atoms in a molecule of butane?