Download App

Amines — Chemistry STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceChemistryAmines5 Marks
Question
Explain the relationship between basicity and structure of amines.
✓

Answer

SELF

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "5 Marks Questions" from Amines→Amines — all question types→Chemistry STD 12 Science question papers→Gujarat Board STD 12 Science question papers→Gujarat Board question paper generator→

Similar questions

19.5 g of CH2FCOOH is dissolved in 500 g of water. The depression in the freezing point of water observed is 1.00 C. Calculate the van’t Hoff factor and dissociation constant of fluoroacetic acid.
→
  1. What are essential and non-essential amino acids? Give two examples of each.
  2. What are the two types of photosynthesis in green plants? Give the basic equations of photosynthesis.
  3. Mention the two products of glycolysis.
→
With the help of an example explain what is meant by pseudo first order reaction.
→
 Match the compounds given in Column I with the oxidation state of cobalt present in it (given in Column II) and assign the correct code.

 
Column I (Compound)
 
Column II (Oxidation state of Co)
a.
[Co(NCS)(NH3)5](SO3)
1.
+4
b.
[Co(NH3)4Cl2]SO4
2.
0
c.
Na4[Co(S2O3)3]
3.
+1
d.
[Co2(CO)8]
4.
+2
 
 
5.
+3

Code:

  1. A (1), B (2), C (4), D (5).
  2. A (4), B (3), C (2), D (1).
  3. A (5), B (1), C (4), D (2).
  4. A (4), B (1), C (2), D (3).
→
Comment on the statement that elements of the first transition series possess many properties different from those of heavier transition elements.
→
A hydrocarbon 'A', (C4H8) on reaction with HCl gives a compound 'B', (C4H9Cl), which on reaction with 1 mol of NH3 gives compound 'C', (C4H11N). On reacting with NaNO2 and HCl followed by treatment with water, compound 'C' yields an optically active alcohol,'D'. Ozonolysis of 'A' gives 2 mols of acetaldehyde. Identify compounds 'A' to 'D'. Explain the reactions involved.
→
  1. Account for the following:
    1. Mn shows the highest oxidation state of +7 with oxygen but with fluorine it shows the highest oxidation state of +4.
    2. Cr2+ is a strong reducing agent.
    3. Cu2+ salts are coloured while Zn2+ salts are white.
  2. Complete the following equations:
    1. $2\text{MnO}_{2} + 4\text{KOH} + \text{O}_{2} \xrightarrow{\Delta}$
    2. $\text{Cr}_{2}\text{O}^{2-}_{7}+ 14\text{H}^{+} + 6\text{I}^{-}\xrightarrow{}$
→
What is vapour pressure? When a non- volatile solute is dissolved in any liquid, the vapour pressure of the liquid decreases. Give reason.
→
Explain the limitations of valence bound theory.
→
  1. How are lipids classified? Give an example of each class.
  2. Explain the following terms:
  1. Mutarotation.
  2. Avitaminosis.
→