CBSE > Class 11 > Chemistry | CBSE Board | Homework Help

Ask questions which are clear, concise and easy to understand.

Ask Question

What is the pH of HCL in 0.01mol solutions

Posted by Nishant Roy 7 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

Balance the equation in acidic medium by ion electron method : H S + MnO ¯ -> S + Mn² ² ⁴

Posted by Yuvraj Humbe 7 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

What is syn gassification

Posted by Lakshmipriya Poopathi 7 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Me Souhardee❤️ 7 years, 9 months ago

The mixture of CO and H2 is called water gas . It is used for synthesis of hydrocarbon and hence called syngas.☺️

1Thank You

ANSWER

What does NaBH4+H2O2 give?

Posted by Siddharth Parihar 7 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

Difference between positive and negative catalyst or inhibitor?

Posted by Dharshika As 7 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Prashant Kumar 7 years, 9 months ago

Positive catalyst means basic catalyst. Negative catalyst means acid catalyst

2Thank You

ANSWER

Friedal craft alkylation

Posted by Rishabh Dev 7 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

One litre of oxygen at STP is made to react with three litre of co at STP calculate the mass of each substance found after the reaction.which one is the limiting reagent

Posted by Aishwarya Balaji 7 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Priyanka Singh Rai Rai 7 years, 9 months ago

Mr. Umar khan are u twisted...idiot insane u don't have mind if u want to use these type of rubbish in answers than do it with your type of people got it... U r i don't have words to say what kind of man u are...twisted person ??

0Thank You

ANSWER

What is Miniscus?

Posted by Cicilla Hembrom 7 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

What is meniscus?

Posted by Cicilla Hembrom 7 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

Free expansion

Posted by Ashish Yadav 7 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

100ml of a mixture of O2 and O3 are heated and O3 is 50% decomposed. The resultant mixture is 115ml. Find the initial volume of O3...

Posted by Vinayak Jaju 7 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

Predict in which of the following entropy decreases or increases a) caco3(s)-->cao(s)+co2(g)

Posted by Dipsmita Chattopadhyay 7 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

What is melting point?

Posted by T Shyam 7 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Vaibhav Kumar Gupta 7 years, 9 months ago

Temperature at which a substance gets converted into liquid state is called its melting point

0Thank You

ANSWER

What is acid rain

Posted by Anurag Ramteke 7 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Vaibhav Kumar Gupta 7 years, 9 months ago

When pH of rain is less than 5.6 then it is called acid rain. Poisonous gases like Sulphur dioxide and Nitrogen dioxide present in atmosphere mixes with rainwater and forms sulphurous acid and nitric acid

0Thank You

ANSWER

carbon and oxygen are known to form two compounds the carbon content in one of these compounds is 42.9% while in other it is 27.3%. show that the data are in agreement with law of multiple proportion

Posted by Shashank Tripathi 7 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

Carbon greatest integer and oxygen are known to form two compounds the carbon content in one of these compound is 42.9% while the file in other its 27.3% show that the data are in agreement with the law office of multiple proportion

Posted by Shashank Tripathi 7 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

What would be the SI unit for pressure

Posted by Pandey Nitin 7 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Ayush Ray 7 years, 9 months ago

Pascal

1Thank You

ANSWER

Mno4

Posted by Md Nishad 7 years, 9 months ago

CBSE > Class 11 > Chemistry

0 answers

ANSWER

What do you mean by water of crystallization?

Posted by Aayush Shukla 7 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Anmol Menra 7 years, 9 months ago

In chemistry, water of crystallization or water of hydration or crystallization water is water that occurs inside crystals. Water is often incorporated in the formation of crystals from aqueous solutions. In some contexts, water of crystallization is the total weight of water in a substance at a given temperature and is mostly present in a definite (stoichiometric) ratio. Classically, "water of crystallization" refers to water that is found in the crystalline framework of a metal complex or a salt, which is not directly bonded to the metal cation. Upon crystallization from water or moist solvents, many compounds incorporate water molecules in their crystalline frameworks. Water of crystallization can generally be removed by heating a sample but the crystalline properties are often lost. For example, in the case of sodium chloride, the dihydrate is unstable at room temperature.

3Thank You

ANSWER

Hot water is heavier than cold water

Posted by Anurag Kumar 7 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Vaibhav Kumar Gupta 7 years, 9 months ago

0Thank You

ANSWER

Is water is a Lewis acid or a base

Posted by Sai Shankar 7 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Chirag Kumar 7 years, 9 months ago

It acts as Lewis acid with Lewis base and acts as Lewis base with Lewis acid.?

2Thank You

ANSWER

write the write the oxidation number of cr in k2cro4

Posted by Dipsmita Chattopadhyay 7 years, 9 months ago

CBSE > Class 11 > Chemistry

2 answers

Dipsmita Chattopadhyay 7 years, 9 months ago

Thank you

0Thank You

Tarun Singh Yadav 7 years, 9 months ago

Let the oxidation no. of Cr be x So, x+2(1)+4(-2)=0 => x-6=0 => x=6 Hence, Oxidation no. Of Cr in K2CrO4 is +6

3Thank You

ANSWER

pH of a 1.0×10^-8 HCl sol

Posted by A K 7 years, 9 months ago

CBSE > Class 11 > Chemistry

1 answers

Sai Shankar 7 years, 9 months ago

As in water H+ ions has a concentration of 10power - 7 but when we consider most of the cases we ignore it as it is negligible when compared with the given H+ ion concentration Now, solution is H+ concentration is not 10power - 8 but it is 10power - 8 + 10power - 7 and then use ph=-log(H+ concentration) thats all u will get the answer Here we considered 10power - 7 due to the reason that 10power - 7 is comparable with 10power - 8

2Thank You

ANSWER

What is kolbe electrolysis

Posted by Aman Kumar 7 years, 9 months ago

CBSE > Class 11 > Chemistry