Uses of Alcohols

Q. Which one of the following ethers cannot be prapared by Williamsons synthesis? Options: Diphenyl ether Diethyl ether Phenyl ethyl ether Tertiary butylether

Q.

Red ink is prepared from

1. Eosin

2. Phenol

3. Aniline

4. Congo red

Q. Tonics in general contain

1. Ethanol
2. Methanol
3. Rectified spirit
4. Ether

Q. $Rectifiedspiritcontains:$

1. 94.6% C₂H₅OH
2. 95.6% C₂H₅OH
3. 96.6% C₂H₅OH
4. 97.6% C₂H₅OH

Q.

Wine (Alcoholic Beverages) Contains -

1. Glycerol

2. ${\mathrm{CH}}_3\mathrm{OH}$

3. 2-Propanol

4. ${\mathrm{C}}_2{\mathrm{H}}_5\mathrm{OH}$

Q.

Soframicine is:

1. Antibiotic

2. Antiseptic

3. Tranquilizer

4. Antipyretic

Q.

Ethanol is used in the preparation of:

1. Tincture of iodine

2. Toluene

3. DDT

4. Carbon tetrachloride

Q.

An enzyme that converts maltose into glucose is:

1. Zymase

2. Maltase

3. Invertase

4. diastase

Q. The products obtained from the above reaction are a mixture of compounds. The correct option(s) is/are

1. The mixture will be optically inactive due to internal compensation
2. The mixture will be optically inactive due to external compensation
3. Solution will be a mixture of two diastereomers
4. One of the compounds formed is:

Q.

What problem arises in using alitame as artificial sweetener?

Q.

An enzyme that converts cane sugar into glucose and fructose is:

1. Zymase

2. Maltase

3. Invertase

4. diastase

Q.

Is Xenon-133 Toxic?

Q. Ethanol is denatured (made unfit for human consumption) by adding a poisonous substance. Identify it.

1. Stearic acid
2. Acetic acid
3. Tartaric acid
4. Methyl alcohol

Q.

Glycerol is used [Kurukshetra CET 2002]

1. As a sweetening agent

2. In the manufacture of nitro glycerine

3. In all of these

4. In the manufacture of good quality soap

Q. The compound (s) used as an antifreeze in radiators of automobiles is/are?

1. methyl alcohol
2. ethyl alcohol
3. ethyl alcohol + water
4. methyl alcohol + water

Q.

In cold countries ethylene glycol is added to water in the radiators to[CPMT 1971; NCERT 1971; MP PMT 1993]

1. Reduce the viscosity

2. Make water a better lubricant

3. Bring down the specific heat of water

4. Lower the viscosity

Q. Aspartame is unstable at cooking temperature. Where would you suggest aspartame to be used for sweetening?

1. Both of them
2. None of these
3. Soft drinks
4. Cold drinks

Q. What problem arises in using alitame as artificial sweetener ?

Q.

why is it that cutting an onion from the fridge is more easy than an onion lying at the room tmperature??

[from class 12 chemistry solutions lessons]

Q. Which property of chlorine helps in using it for sterilizing water?

Q. Which of the following does NOT involve application of Methanol?

1. As an anti-freeze in pipelines
2. As a solvent
3. In consumable liquor
4. In Windshield washer fluid

Q.

Substances used in bringing down the temperature in high fevers are called [DPMT 1983]

1. Antiseptics

2. Pyretics

3. Antipyretics

4. Antibiotics

Q. Bithionol is generally added to the soaps as an additive to function as a/an:

1. buffering agent
2. dryer
3. softener
4. antiseptic

Q. Constituent of gasohol is:

1. 90% petrol + 10% alcohol
2. 80% petrol + 20% ethanol
3. 60% petrol + 40% ethanol
4. 50% petrol + 50% ethanol

Q.

Phenol is used in the manufacture of [AIIMS 1996]

1. Polystyrene

2. Nylon

3. PVC

4. Bakelite

Q.

Ethanol is used in the preparation of:

1. Tincture of iodine

2. DDT

3. Carbon tetrachloride

4. Toluene

Q.

what is acetylsalicylic acid is -

a refrigerant or a drug?

Q.

Methyl alcohol is toxic. The reason assigned is [RPET 2000]

1. It stops respiratory track

2. It reacts with nitrogen and formsCN^-in the lungs

3. It increases CO₂ content in the blood

4. It is a reduction product of formaldehyde

Q. List out the different uses of ethanol.

Q. Which of the following is not correctly matched with its uses ?

1. Methanol : As a solvent for paints , varnishes etc.
2. Ethanol : For denaturing spirit, in manufacture of formaldehyde.
3. Ethers : To provide inert medium for chemical reactions , as anaesthetic.
4. All are correctly matched.