« Previous Quiz
Chemistry - (22-Oct-2016)
Next Quiz »
 
Chemistry - (22-Oct-2016)
« Previous Quiz
Next Quiz »
 
You should be logged in to start the quiz.
Log In Now!
Not registered yet?
Register now for FREE!
 
You should be logged in to start the quiz.
Log In Now!
Not registered yet?
Register now for FREE!
 
Ques: 1

Hydraulic separation method is used for the concentration of which ore?

Cassiterite

Haematite

Calamine

Galena

Skip Question
 
Ques: 2

A certain laser transition emits $$ 6.37 \times 10^{25} $$ quanta per second per square meter. The power output in joules per square meter per second would be ( $$ \lambda  = 632.8 $$ nm)

$$ 5 \times 10^{5} Jm^{-2} sec ^{-1} $$

$$ 2 \times 10^{-3} Jm^{-2} sec ^{-1} $$

$$ 9.2 \times 10^{-3} Jm^{-2} sec ^{-1} $$

$$ 2 \times 10^{7} Jm^{-2} sec ^{-1} $$

Skip Question
 
Ques: 3

A gas $$ X $$ bleaches the colour of flowers by reduction, while the other gas $$ Y $$ by oxidation. These two gases $$ X $$ and $$ Y $$ are respectively

$$ CO $$ and $$ CO_{2} $$

$$ NH_{3} $$ and $$ SO_{3} $$

$$ CO_{2} $$ and $$ Br_{2} $$

$$ SO_{2} $$ and $$ Cl_{2} $$

Skip Question
 
Ques: 4

Diels-Alder reaction is used to synthesise a ring of

four carbon atoms

five carbon atoms

three carbon atoms

six carbon atoms

Skip Question
 
Ques: 5

For the complex, $$ Ag^{+}+2NH_{3}\rightarrow  [Ag(NH_{3})_{2}^{+}] $$ ,
$$ (\dfrac{dx}{dt})=2\times 10^{7}L^{2}mol^{-2}s^{-1}[Ag^{+}][NH_{3}]^{2} = 1\times 10^{-2}s^{-1}[Ag(NH_{3})_{2}^{+}] $$ .
Hence, the ratio of rate constants of the forward and backward reactions is

$$ 2\times 10^{7} $$ $$ L^{2} $$ $$ mol^{-2} $$

$$ 2\times 10^{9} $$ $$ L^{2} $$ $$ mol^{-2} $$

$$ 1\times 10^{-2} $$ $$ L^{2} $$ $$ mol^{-2} $$

$$ 0.5\times 10^{-9} $$ $$ L^{2} $$ $$ mol^{-2} $$

Skip Question
FREE simulation mock test for NEET UG with exam grade questions.
Start Test    

 

 

NEET UG 2016 - Mock Tests and Much More

Recommended Articles for You

PrepLadder

JEE-Main and JEE-Advanced 2016 went by recently and its not time for admissions to various engineering [ ... ]

Read more...
PrepLadder

 

Adequate practice plays a vital role in achieving a good rank and score in NEET UG. This is where [ ... ]

Read more...
PrepLadder

Medical Education has been through a lot of uncertainty and confusion in the year 2016. Consequently, [ ... ]

Read more...
PrepLadder

Here is grand news to rejoice for all the medical aspirants in the nation!

Faggan Singh Kulaste, Union [ ... ]

Read more...
PrepLadder

Boards vs JEE

This question arises in the minds of almost every class XII student who longs to crack [ ... ]

Read more...