Solubility and Density of Alkanes

Q. Benzoic acid reacts with conc. $HN{O}_3$ and conc. $H_{2}S{O}_4$ to give major product as:

Q.

QUESTION 2.24

Based on solute - solvent interactions, arrange the below given in order of increasing solubility in n - octane and explain.
Cyclohexane, KCl, $C{H}_{3}OH$, $C{H}_{3}CN$

Q.

Why alcohols are soluble in water?

Q. Halogens are highly soluble in polar solvents like water - True or False?

1. True
2. False

Q. A solution of 1 molal concentration of a solute will have maximum boiling point elevation when the solvent is A)Ethyl alcohol B)Acetone C)Benzene D)Chlorofor

Q. Which one of the following statements is/are true regarding solubility of alkanes?

1. Soluble in various organic solvents
2. (a) and (b) above.
3. None of the above
4. Insoluble in water

Q. 89 In fluorobenzene or any halo benzene the electron density is maximum at which position??

Q. Which of the following compounds will give instant turbidity with $HCl+ZnC{l}_2$?

1. Neopentyl alcohol
2. Benzyl alcohol
3. Isopropyl alcohol
4. Ethyl alcohol

Q.

Arrange the above compounds in increasing order of their boiling points:

1. $ii>i>iii$
2. $i>ii>iii$
3. $i>iii>ii$
4. $iii>ii>i$

Q. Which of the following compounds is insoluble even in hot concentrated $H_{2}S{O}_4$

1. Ethylene
2. Benzene
3. Hexane
4. Aniline

Q. Which is the most suitable reagent among the following to distinguish compound (3) from rest of the compounds?
1. $C{H}_3-C\equiv C-C{H}_3$
2. $C{H}_3-CH=CH-C{H}_3$
3. $C{H}_3-C{H}_{2}C\equiv CH$
4. $C{H}_3-CH=C{H}_2$

1. Bromine in carbon tetrachloride
2. Bromine in acetic acid
3. Alkaline $KMn{O}_4$
4. Ammonical silver nitrate

Q. which group of hydrocarbons has the highest boiling and melting point

Q. Assertion :The molecular weight of acetic acid determined by depression in freezing point method in benzene and water was found to be different. Reason: Water is polar and benzene is non-polar.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Assertion is incorrect but Reason is correct

Q. Which of the following solvent will give maximum yield for an alkyl halide undergoing $S_{N}1$ mechanism?

1. n-hexane
2. Water
3. Ethanol
4. Diethyl ether

Q.

1. i > ii > iii
2. ii > i > iii
3. iii > i > ii
4. iii > ii > i

Q. Based on solute-solvent interactions, arrange the following in order of increasing solubility in n-octane and explain.

Q. Explain why alcohols are comparatively more soluble in water than the corresponding hydrocarbon.

Q. Why do oils generally remain in liquid state even in winter?

Q.

Which of the following has least solubility?

1. n-Butyl alcohol

2. sec-Butyl alcohol

3. tert-Butyl alcohol

4. All have same

Q. Assertion :Molecular mass of $KCl$ calculated on the basis of colligative properties will be lower than the normal molecular mass. Reason: Experimentally determined molar mass is always lower than the true value.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is correct but Reason is incorrect
4. Both Assertion and Reason are incorrect

Q. Amongst the three isomers of nitrophenol, the one that is least soluble in water is:

1. ortho
2. meta
3. para
4. none of these

Q.

Alkyl halides though polar, are immiscible with water. Give reason?

Q. Which of the gas is highly soluble in water?

1. Ammonia
2. Nitrogen
3. Carbon monoxide
4. Oxygen

Q. Which one of the following statements is/are true regarding solubility of alkanes?

1. Insoluble in water
2. Soluble in various organic solvents
3. (a) and (b) above.
4. None of the above

Q. Solubility order of compounds in water is :

1. $NaCl<LiCl<BeC{l}_2$
2. $BeC{l}_2<NaCl<LiCl$
3. $LiCl<NaCl<BeC{l}_2$
4. $BeC{l}_2<LiCl<NaCl$

Q. Nitroalkanes and alkyl nitrites. can be distinguished by?

Q. $C_6{H}_6$ is very good industrial solvent for:

1. $NaCl$
2. $MgC{l}_2$
3. fats
4. $CaC{O}_3$

Q.

why organic compounds are generally soluble in non-polar solvents?

why organic compounds have low melting and boiling point?