Physical Properties of Alkenes

Q.

Define Anti Markovnikovs Rule And Markovnikovs with example.

Q. Compound $X$ on reaction with $O_3$ followed by $Zn/H_{2}O$ gives formaldehyde and $2-$methyl propanal as products. The compound $X$ is

1. $3-\text{Methylbut}-1-\text{ene}$
2. $2-\text{Methylbut}-1-\text{ene}$
3. $\text{Pent}-2-\text{ene}$
4. $2-\text{Methylbut}-2-\text{ene}$

Q. What happens when an alkyl halide reacts with AgNO2 and the product is reduced?

Q.

How will you prepare 2-methyl-propan−2−ol from methyl magnesium bromide?

Q.

Why but-2-ene is more stable than but-1-ene?

Q.

Interstitial compounds are formed when small atoms are trapped inside the crystal lattice of metals. Which of the following is not characteristic property of interstitial compounds?

1. They are chemically very reactive.

2. They are very hard.

3. They have high melting points in comparison to pure metals.

4. They retain metallic conductivity.

Q. Why is the boiling point of cis isomers higher?

1. Strong intermolecular forces between the molecules of the cis isomers
2. Polarity of cis isomers
3. Both (a) and (b)
4. None of the above

Q.

Give the hydrolysis of ${\mathrm{NCl}}_3$.

Q.

A compound $\mathrm{X}$ consists of only molecules. Hence, $\mathrm{X}$ will have

1. A crystalline hard structure

2. A low melting and boiling point.

3. An ionic bond

4. A strong force of attraction between its molecules.

Q. The structures of four organic compounds are shown below.

Which compounds decolourise bromine water?

1. 1 and 2 only
2. 1, 2 and 4 only
3. 2 and 4 only
4. 3 and 4 only

Q.

Write few physical properties of alkane.

Q.

If all the following 4 compounds were sold at the same price , which would be cheapest for preparing an antifreeze solution for a car radiator?

(A) CH₃OH

(B) C₂H₅OH

(C) C₂H₄(OH)₂

(D) C₃H₅(OH)₃

Q. Which of the following characteristics is/are true regarding metallic solids?

1. They are malleable and ductile.
2. They possess lusture
3. Show high thermal and electrical conductivity.
4. All of the above

Q.

A mixture of FeO and FeO_{​​​​3} when heated in air to constant weight gains 5% in weight. Find out composition of mixture.

Plz explain the reaction involved in the process along with the equation.

Thanks in advance ...☺

Q. Which of the following is not an oxo-acid of nitrogen?

1. Hyponitric acid
2. Hyponitrous acid
3. Nitrous acid
4. Nitric acid

Q. Match the reactions given in Column I with the suitable reagents given in Column II.
$\begin{array}{cccc}& \text{Column I(Reactions)}& & \text{Column II(Reagents)}\\ \text{A}& \text{Benzophenone}\to \text{Diphenylmethane}& \left(i\right)& \text{LiAlH\_4}\\ \text{B}& \text{Benzaldehyde}\to \text{1-Phenylethanol}& \left(ii\right)& \text{DIBAL−H}\\ \text{C}& \text{Cyclohexanone}\to \text{Cyclohexanol}& \left(iii\right)& \text{Zn(Hg)/ conc. HCl}\\ \text{D}& \text{Phenyl benzoate}\to \text{Benzaldehyde}& \left(iv\right)& \text{CH\_3MgBr}\end{array}$

Q.

In Tollen’s test for aldehyde, the overall number of electron(s) transferred to the Tollen’s reagent formula $[\mathrm{Ag}{\left({\mathrm{NH}}_3\right)}_2{]}^{+}$ per aldehyde group to form silver mirror is ________. (Round off to the Nearest Integer).

Q.

How will you prepare nitrobenzene from chlorobenzene?

Q. The major product of the given substitution reaction is
$(C{H}_3{)}_{2}C=CH-C{H}_2-Br\stackrel{H_{2}O}{\to }$

1. $\left(C{H}_3{)}_2\right(Br)C-CH=C{H}_2$
2. $(C{H}_3{)}_{2}C=CH-C{H}_2-OH$
3. $\left(C{H}_3{)}_2\right(OH)C-CH=C{H}_2$
4. None of the above

Q.

${\mathrm{CH}}_3-{\mathrm{CH}}_2-\mathrm{Br}\stackrel{\mathrm{Mg},\mathrm{dry}\mathrm{ether}}{\to }\mathrm{A}\stackrel{{\mathrm{H}}_2\mathrm{O}}{\to }\mathrm{B}$ Identified A and B compound.

Q.

What is the largest single use of dihydrogen?

Q. The type of isomerism shown by the complex $\left[CoC{l}_2\right(en{)}_2]$ is :

1. linkage isomerism
2. geometrical isomerism
3. optical isomerism
4. (b) and (c) above

Q. What is the major dehydration product in the following reaction?

1. 
2. 
3. 
4. 

Q. Reaction of chlorobenzene with sodamide in presence of liquid ammonia involves the formation of which of the following?

1. All the three
2. 
3. 
4. 

Q.

How many monochlorinated products can be obtained from all the isomeric alkanes having the formula ${\mathrm{C}}_5{\mathrm{H}}_{10}$(excluding stereoisomers)?

Q. 8. Draw all the isomers(geometrical and optical) of (I) [Co(NH3)Cl(en)2]2+ (II)[Co(NH3)2Cl2(en)]1+

Q. The highest boiling point is expected for

1. 
2. 
3. 
4. All have same boiling point

Q.

One mole of a mixture of $\mathrm{CO}$ and ${\mathrm{CO}}_2$ requires exactly $20\mathrm{g}$ of $\mathrm{NaOH}$ in solution for complete conversion of all the ${\mathrm{CO}}_2$ into ${\mathrm{Na}}_2{\mathrm{CO}}_3$​. How many more grams of $\mathrm{NaOH}$ would it require for conversion into ${\mathrm{Na}}_2{\mathrm{CO}}_3$. If the mixture (one mole) is completely oxidised to ${\mathrm{CO}}_2$?

Q.

Give two examples in each case:

Non-electrolytes

Q. What is the physical state of first member of the aldehyde family at a ordinary temperature?

1. Solid
2. Liquid
3. Gas
4. None of these