Haloalkanes and Haloarenes — Chemistry STD 12 Science — Question

Arrange the following:
In increasing order of basic strength:
C₆H₅NH₂, C₆H₅N(CH₃)₂, (C₂H₅)₂NH and CH₃NH₂

Write the composition of Vinegar.

What are parauranium elements?

Draw the structure of the following compound.
4-Chloropentan-2-one.

Name two of the different types of RNA molecules found in the cells of organisms.

Write the IUPAC name of the following compound:

CH₂ = CHCH₂Br.

Write the correct order of decreasing acid strength of acetic acid, chloro acetic acid, dichloro acetic acid, trichloroacetic acid.

What are enzymes?

Note: In the following questions a statement of assertion followed by a statement of reason is given. Choose the correct answer out of the following choices.

1. Assertion and reason both are correct statements and reason is correct explanation for assertion.
2. Assertion and reason both are correct statements but reason is not correct explanation for assertion.
3. Assertion is correct statement but reason is wrong statement.
4. Assertion and reason both are incorrect statements.
5. Assertion is wrong statement but reason is correct statement.

Assertion: When NaCl is added to water a depression in freezing point is observed.
Reason: The lowering of vapour pressure of a solution causes depression in the freezing point.

Write the maximum oxidation state displayed by actinoids.