Metal loud and nonmetal
Two metals
two general classes of elements
No: for example, none of the other elements contains any amount of these two elements. Other large classes of substances free from oxygen and silicon are halides and hydrocarbons.
The combination of two elements (a metal and a nonmetal) is always a redox reaction.
The three classes of elements are metals, nonmetals, and metalloids.
1. Explain with suitable examples: a) Both chlorobenzene and chloroethene do not undergo substitution reactions under ordinary conditions with NaOH. b) Carbonyl group of benzaldehyde is less reactive towards nucleophilic addition reactions than the carbonyl group of ethanal. 2. Write the product (s) and mechanism for the following reactions: (5) 3. How would you carry out following conversions? a) Ethene to oxirane b) Benzyl magnesium chloride to 3-phenylpropanol c) Propene to glycerol d) Benzaldehyde to 3-phenylpropenoic acid e) Ethanol to trichloromethane (5) 4. a) How would you differentiate between different classes of alcohols? b) Give two reduction methods which can convert a carbonyl compound to an alkane.
Which of these is not of the three main classes of elements?Read more: Which_of_these_is_not_of_the_three_main_classes_of_elements
A compound is two or more elements into one thing for example H2O is 2x Hydrogen 1x Oxygen
Now are known approx. 60 000 000 chemical compounds; all element can form more or less compounds.
For example acids, bases, salts.
Metals and metalloids are conductive.
Metals and metalloids are conductive.
Password inherits from which one of the following classes?
Three main classes are:MetalsNon metalsTransition elementsThey are present in periodic table.
An ammoxidation is the reaction of ammonia and oxygen with any of several classes of organic compound.
metalsnon metalssemi metals
Alkali, alkaline earth metals, and nonmetals.
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