Exams

____ is the most electropositive and ___ is the most electronegative element of the third period of modern periodic table.

Pipe A can fill an empty cistern in 4 hours while along with Pipe B it can fill it up in 3 hours. Only Pipe A is turned on for an hour after which Pipe B is also turned on. How much total time will it take to fill up the cistern?

P can do a work in 10 days. Q can do the same work in 15 days. If they work together for 5 days, how much of the work will they complete?

What is the percentage of methane in biogas?

Krish is 5 years younger than Parthiv. Eight years ago three times the age of Krish was 10 more than twice the age of Parthiv. Find Krish's present age?

In a certain code language, “RAPID” is written as “GLSDU”. How is “WATER” written in that code language?

A village woman walks 2.5 km South starting from her home in search of water. She then turns West and walks 1.5 km, then she turns South and walks 0.5km, then she turns to her left and walks 1.5 km. Where is she now with respect to her home?

An earthquake of magnitude _________________ on Richter scale has thousand times more destructive energy than an earthquake of magnitude 4.