JEE (MAINS) 2016 with Solutions

JEE (MAINS) 2016 with Solutions

Sample Questions

An observer looks at a distant tree of height 10 m
with a telescope of magnifying power of 20. To
the observer the tree appears :
(1) 20 times nearer
(2) 10 times taller
(3) 10 times nearer
(4) 20 times taller

Arrange the following electromagnetic radiations
per quantum in the order of increasing energy :-
A : Blue light B : Yellow light
C : X–ray D : Radiowave
(1) B, A, D, C (2) D, B, A, C
(3) A, B, D, C (4) C, A, B, D

Which one of the following ores is best concentrated by froth floatation method ?
(1) Magnetite (2) Siderite (3) Galena (4) Malachite

Which one of the following statements about water is FALSE ?
(1) Water is oxidized to oxygen during photosynthesis.
(2) Water can act both as an acid and as a base.
(3) There is extensive intramolecular hydrogen bonding in the condensed phase.
(4) Ice formed by heavy water sinks in normal water

The concentration of fluoride, lead, nitrate and iron in a water sample from an underground lake was found to be 1000 ppb, 40 ppb, 100 ppm and 0.2 ppm, respectively. This water is unsuitable for drinking
due to high concentration of :
(1) Fluoride (2) Lead (3) Nitrate (4) Iron

The distillation technique most suited for separating glycerol from spentlye in the soap industry is :
(1) Simple distillation (2) Fractional distillation
(3) Steam distillation (4) Distillation under reduced pressure

You can grab other AIEEE/JEE(Mains) paper with solutions from here. You can find other engineering exams here.