# WBJEE

## Explore Questions on "WBJEE"

There are total 13 questions found on the topic "WBJEE". Check all the answers posted by our expert tutors and trainers. If you have any query on WBJEE kindly post it and get free answers from our tutors.

## The total number of electrons present in 18 ml of water i...

Posted by: Harinarayan B. on: 07.03.2018

## The mass of a hydrogen atom is ............. kg.

Posted by: Snjay B. on: 12.03.2018

## The oxidation number of carbon in $CH_2O$ is

• A

-2

• B

+2

• C

0

• D

+4

Posted by: Ramesh B. on: 07.03.2018

## The largest number of molecules is in

• A

36 g of water

• B

28 g of carbon monoxide

• C

46 g of ethyl alcohol

• D

54 g of nitrogen pentoxide

Posted by: B.l. A. on: 07.03.2018

## M is molecular weight of $KMnO_4$. The equivalent weight of $KMnO_4$when it is converted into $K_2MnO_4$ is

• A

M

• B

M/3

• C

M/5

• D

M/7

Posted by: M. V. on: 07.03.2018

## An ambulance siren has frequency 250 Hz. The ambulance is...

Posted by: Balu D. on: 21.03.2018

## Gelatin which is a peptide is added in ice creams. What c...

Posted by: Rishabh Y. on: 15.03.2018

## One mole of $N_2H_4$ loses ten moles of electrons to form a new compound Y. Assuming that all the nitrogen appears in the new compound, what is the oxidation state of nitrogen in Y? (There is no change in the oxidation state of hydrogen).

• A

-1

• B

-3

• C

+3

• D

+5

Posted by: Ashish J. on: 07.03.2018

## If 0.50 mole of $BaCl_2$ is mixed with 0.20 mol of $Na_3PO_4$, the maximum number of moles of $Ba_3(PO_4)_2$ that can be formed is

• A

0.70

• B

0.50

• C

0.20

• D

0.10

Posted by: Ritesh K. on: 07.03.2018

## A gaseous mixture contains oxygen and nitrogen in the rat...

• A

1: 4

• B

1: 8

• C

7: 32

• D

3: 16

Posted by: Swapan K. on: 07.03.2018

## The compound $YBa_2Cu_3O_7$, which shows superconductivity, has copper in oxidation state..................., assume that the rare earth element yttrium is in its usual + 3 oxidation state.

Posted by: Sanjay on: 07.03.2018

## Which of the following schemes is being implement...

Posted by: K. S. on: 09.02.2018

## Help me to calculate the value of the integral: $\int \limits _0^1{e^{x^2}dx}$

Posted by: Balkishun A. on: 05.01.2018

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