Introduction to Inorganic Chemistry

Q.

What are Chelating agents?

Q.

Difference between sulphate, sulphite, and sulphide.

Q.

How Do You Identify Organic Compounds?

Q.

In the titration of ${\mathrm{CH}}_3\mathrm{COOH}$ against $\mathrm{NaOH}$, which of the following indicator acts as a suitable indicator for this titration?

1. Methyl red

2. Methyl orange

3. Phenolphthalein

4. Bromothymol blue

Q. What is isomerisation?

Q. In the textbook the E value for copper is positive , it is due to the sum of enthalpy of sublimation and ionization not balancing hydration enthalpy .My question is how the electrode potential dependent upon enthalpy of sublimation , ionization and hydration ?

Q.

1. phenolphthalein
2. A thymol blue
3. methyl orange
4. thymolphthalein

Q.

Explain the reason for the fusion of an organic compound with metallic sodium for testing nitrogen, sulphur and halogens.

Q.

Why Are Chromate And Dichromate Anions Colored?

Q.

___ gas is produced by heating of ammonium nitrate (name only the nitrogen-containing compound).

Q.

In the reaction :

M + (x+y)NH₃ ____{> [M(NH3)x]}+ _{+. [e(NH3)y]^-}

_{^{{Where M is alkali metal } what is the meaning of 'x' and 'y'?}}

Q. The ratio of mass percent of C and H of an organic compound $\left(C_X{H}_Y{O}_Z\right)$ is 6 : 1. If one molecule of the above compound $\left(C_X{H}_Y{O}_Z\right)$ contains half as much oxygen as required to burn one molecule of compound $C_X{H}_Y$ completely to $C{O}_2$ and $H_{2}O$. The empirical formula of compound $C_X{H}_Y{O}_Z$ is

1. $C_3{H}_6{O}_3$
2. $C_2{H}_4{O}^{}$
3. $C_3{H}_4{O}_2$
4. $C_2{H}_4{O}_3$

Q. Gold reacts with chlorine at 150°C as per balanced reaction
2Au+3Cl2--->2AuCl3.10g of each gold and chlorine are sealed in a container and heated at 150°C till the reaction is complete .Name the limiting and excess reactants .Also calculate amount of AuCl3 formed and mass of excess reactant left behind.

Q. Sir is inorganic important than organic chemistry In jee

Q.

At high temperatures, nitrogen directly combines with:

1. Zn

2. Mg

3. Al

4. Fe

Q. Which among the following oxide of nitrogen exists as solid at room temperature?

Q. In which of the following compound(s) nitrogen can be detected by Lassaigne’s test?

1. 
2. 
3. 
4. 

Q.

Identify the anion present in the following compounds.

Compound X on heating with copper turnings and concentrated sulphuric acid liberates a reddish-brown gas.

Q. Given below are two statements:
$\text{Statement I}:$ A mixture of chloroform and aniline can be separated by simple distillation.
$\text{Statement II}:$ When separating aniline from a mixture of aniline and water by steam distillation aniline boils below its boiling point.
In the light of the above statements, choose the most appropriate answer from the options given below.

JEE MAIN 2021

1. $\text{Statement I is false but statement II is true}$
2. $\text{Both statement I and statement II are true}$
3. $\text{Statement I is true but statement II is false}$
4. $\text{Both statement I and statement II are false}$

Q. Organic and Inorganic compounds differ from each other in terms of :

1. melting point.
2. catenation.
3. isomerism.
4. All of the above.

Q. What are dye stuffs for example methylene blue

Q.

Match the following

Alkali metalFlame colour

A. Lithium I.Violet

B.Potassium II. Blue

C. Rubidium III. Crimson red

D. Cesium IV. Red violet

1. I - A, II - B, III - D, IV - C

2. I - B, II - A, III - C, IV - D

3. I - B, II - D, III - A, IV - C

4. I - D, II - C, III - A, IV - B

Q. which of the following oxide does not form dimer 1.No 2.ClO2 3.No2 4.All of these

Q. The ratio of mass percent of $C$ and $H$ of an organic compound $\left(C_X{H}_Y{O}_Z\right)$ is $6:1$. If one molecule of the above compound $\left(C_X{H}_Y{O}_Z\right)$ contain half as much oxygen as required to burn one molecule of compound $C_X{H}_Y$ completely to $C{O}_2$ and $H_{2}O$. The empirical formula of compound $C_X{H}_Y{O}_Z$ is :

1. $C_2{H}_4{O}_3$
2. $C_3{H}_4{O}_2$
3. $C_3{H}_6{O}_3$
4. $C_2{H}_{4}O$

Q. Between Agcl and kcl , agcl is more polar why ? even if the cation Ag is larger Than K

Q. Which is the thermodynamically most stable allotrope of phosphorus?

Q.

What is the function of Acetone in Finkelstein reaction ?

Q. metal ammines can be obtained by direct addition of metal salt to liquid ammonia . if 0.001M AgCl is mixed with 0.001M NH3 , number of moles of [Ag(NH3)2]Cl obtained are

Q. The fusion of an organic compound with solid sodium hydroxide is undertaken for testing nitrogen, sulphur and halogens. This test is called:

1. Dumas method
2. Carius method
3. Kjeldahl's method
4. Lassaigne's test

Q. Amongst the following elements present in an organic compound, the one which has no direct test for detection is :

1. $N$
2. $S$
3. $Cl$
4. $O$