Which one of the following is not a borderline element?
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Which of the following gases turns lime water milky?
An incident ray strikes a plane mirror at an angle of 20 deg with the mirror. The angle between the incident ray and reflected ray is ____.
Which of the following is NOT based on principle of relationship between volume and pressure of air?
The amount of insurance cover provided by Indian Railways for passengers at a premium of Re. 1 is
Which colour is formed when Red and Green are mixed?
In terms of size, Venus ranks no. ___ in our Solar System.
American astronaut Scott Joseph Kelly commanded the International Space Station Consecutively for 340 days on ___.