Out of C and CO, which is a better reducing agent at the lower temperature range in the blast furnace to extract iron from the oxide ore?
Concept: Occurrence of Metals
Write the names and structure of the monomers of the following polymers: Buna − S
Concept: Introduction of Polymers
What use of drugs is used in sleeping pills?
Concept: Drugs and Their Classification
How do you convert: Chlorobenzene to biphenyl
Concept: Introduction of Haloalkanes and Haloarenes
What is the role of cryolite in the extraction of aluminium?
Concept: Occurrence of Metals
What is the role of limestone in the extraction of iron from its oxides?
Concept: Occurrence of Metals
Nitrogen does not form pentahalide.
Concept: Concept of Group 15 Elements
Identify the monomers in the following polymer:
Concept: Introduction of Polymers
Arrange the following polymers in the Increasing order of their intermolecular forces:
Terylene, Polythene, Neoprene
Concept: Introduction of Polymers
Due to hectic and busy schedule, Mr Angad made his life full of tensions and anxiety. He started taking sleeping pills to overcome the depression without consulting the doctor. Mr Deepak, a close friend of Mr. Angad advised him to stop taking sleeping pills and suggested to change his life lifestyle by doing yoga, meditation and some physical exercise. Mr. Angad followed his friend’s advice and after few days he started feeling better.
After reading the above passage, answer the following
(i) What are the values (at least two) displayed by Mr. Deepak?
(ii) Why is it not advisable to take sleeping pills without consulting doctor?
(iii) What are tranquilisers? Give two examples.
Concept: Drugs and Their Classification
Write two differences between an ideal solution and a non-ideal solution.
Concept: Types of Solutions
What is the role of CO in the extraction of Iron?
Concept: Occurrence of Metals
Write the names and structures of the monomers of the following polymers: Nylon-6
Concept: Introduction of Polymers
Write the names and structures of the monomers of the following polymers: Novolac
Concept: Introduction of Polymers
What is rate of reaction?
Concept: Rate of a Chemical Reaction
Account for the following:
N2 is less reactive at room temperature.
Concept: Concept of Group 15 Elements
Account for the following: Reducing character increases from NH3 to BiH3.
Concept: Concept of Group 15 Elements
In the extraction of Al, impure Al2O3 is dissolved in conc. NaOH to form sodium aluminate and leaving impurities behind. What is the name of this process?
Concept: Occurrence of Metals
What is the role of coke in the extraction of iron from its oxides?
Concept: Occurrence of Metals
Identify the monomers in the following polymer:
Concept: Introduction of Polymers
