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All posts related to Science

Harshit Reddy
Shared from BITSAT Mock - 2 on Aug 20, 2020 4:49 PM

A wire is wound in the form of spiral with 21 turns. The inner and outer radii are 1 cm and 8 cm, respectively. What is the magnetic field at the centre, when a current of 2A passes through it?

 
Please type your answer before submitting.
Harshit Reddy

This is a dc pandey example problem.

Adya
Shared from JEE Main Mock - 1 on Aug 17, 2020 12:08 PM

Consider the following reaction:



Identify the structure of the major product X.

 
Please type your answer before submitting.
Adya

What does 'D' represent?Option c is also a 3 degree free radical.

Navdeep Kaur
Shared from Alkyl Halides on Jul 22, 2020 3:03 PM

Arrange the following in decreasing order of the rate of hydrolysis:

1. PhCH2Cl
2. PhCH(Cl)CH3
3. Ph2CHCl
4. Ph3CCl

 
1 > 2 > 3 > 4
1 > 3 > 2 > 4
2 > 1 > 4 > 3
3 > 2 > 1 > 4
4 > 3 > 2 > 1
Please type your answer before submitting.
Navdeep Kaur

Please give the full explanation.

Varchashi
Shared from NEET (20 May, 2019) on Jul 19, 2020 11:00 AM

The major products C and D formed in the following reaction respectively are:

H3C - CH2 - CH2 - O - C(CH3)3 C + D

 
H3C - CH2 - CH2 - OH and HO - C(CH3)3
H3C - CH2 - CH2 - OH and I - C(CH3)3
H3C - CH2 - CH2 - I and I - C(CH3)3
H3C - CH2 - CH2 - I and HO - C(CH3)3
Please type your answer before submitting.
Varchashi

Wrong answer anser is 3

Santosh Vishwanathan
Shared from BITSAT Mock - 9 on Jul 05, 2020 10:42 PM

Both Co3+ and Pt4+ have coordination number as six. Which of the following pairs of complexes will show approximately the same electrical conductance for their 0.001 M aqueous solutions?

 
CoCl3.4NH3 and PtCl4.4NH3
CoCl3.3NH3 and PtCl4.5NH3
CoCl3.6NH3 and PtCl4.5NH3
CoCl3.6NH3 and PtCl4.3NH3
Please type your answer before submitting.
Santosh Vishwanathan

Coordination number of Pt is 6 so 6 nh3 molecules should be a part of the complex. So the answer has to be a) not c) Anyone agree with me?