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Subject: Chemistry, asked on 3/4/18

Solve this:

Subject: Chemistry, asked on 31/3/18

my sister wants to take humanities in 11 class as she wants to be a fashion designer so she is getting an option for history and sociology so which subject should she take ​

Subject: Chemistry, asked on 28/3/18

How do we identify reducing and non reducing sugars in annomerised form..?! Please expalin with an example

Subject: Chemistry, asked on 28/3/18

How do we identify reducing and non reducing sugars in annomerised form? Please explain with an example..

Subject: Chemistry, asked on 1/3/18

​​ Ram uses urea and DAP for his crops whereas Shyam uses compost. Ammonia is prepared by Haber's process. It is used for making fertilizers. If it is used in access, it is harmful for crops.
  1. What is DAP?
 
  1. What can be done with waste products?
 
  1. What is the use of avoiding excess of fertilizers?
 
  1. Natural manure is preferred than synthetic fertilizers. Why?
 

Subject: Chemistry, asked on 25/2/18

water is essential for our life we can't imagine life without it pollution of water originates from human activities Municipal and industrial discharge lead to water pollution organic waste also creates water pollution of Statue of Durga Ganesh and other dieties of different religions in water creates a lot of water pollution RWA of Chittaranjan Park decided not to put statues into Yamuna river like every year the step was highly appreciated by Delhi government and NGOs read this and answer a) what should be done to reduce water pollution b) what is effect of water pollution c) what is threat for aquatic animals due to water pollution d) what values are possessed by the members of r w a Chittaranjan Park

Subject: Chemistry, asked on 14/2/18

Solve this:
Q.21. Write structural formulae for following compounds.
a) 5 - Bromoheptanoic acid
b) 3 - Methylpentanol
c) 2, 3 - Dimethyl cyclohex-l-ene

Subject: Chemistry, asked on 14/2/18

 As a part of 'clean India drive', Nandini, a school student, visited a slum area and saw heaps of garbage everywhere. She observed that people throw garbage on roads. She asked them not to throw domestic waste on roads and suggested then a few ways to recycle biodegradable domestic waste. After reading the above paragraph, answer the following questions.
(a) Write the two values demonstrated by Nandini
(b) Suggest one way each to manage
(i) Household Waste                (ii) Industrial waste.

Subject: Chemistry, asked on 14/2/18


Q. Using Huckel's rule, predict which one of the following is an aromatic compound?

 

Subject: Chemistry, asked on 12/1/18

Why oder of any reaction cant be more than 3 ?

Subject: Chemistry, asked on 11/1/18

How are freons creating a hole in the ozone layer?

Subject: Chemistry, asked on 10/1/18

classify environmental pollutants environmental pollution into different types.

Subject: Chemistry, asked on 14/11/17


Q. Name of these compound


 

Subject: Chemistry, asked on 5/9/17

why are statues and monuments effected by acid rain?

Subject: Chemistry, asked on 5/9/17

why is carbon mono oxide more dangerous than carbon dioxide?

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