Prepare for NEET Chemistry In Everyday Life with MCQs & PYQs on NEET.GUIDE. Practice free previous year questions, get expert solutions, and understand the chemistry of daily products.
Which statement regarding cationic detergents is FALSE?
They possess a positively charged hydrophilic head group.
They are often used as fabric softeners and germicides.
They are effective cleaning agents in hard water due to their insensitivity to calcium and magnesium ions.
Their effectiveness is reduced by anionic surfactants.
Which of the following statements regarding the mechanism of action of benzodiazepines is INCORRECT?
They enhance the effect of GABA by increasing the frequency of chloride channel opening.
They bind to a specific site on the GABA receptor complex.
They act as dopamine agonists, enhancing dopaminergic neurotransmission.
Their effects can be reversed by flumazenil, a competitive antagonist.
Which of the following is NOT a characteristic of drug tolerance?
It can be reversed by increasing the drug dose.
It can develop to both the desired and undesired effects of a drug.
It can be influenced by genetic factors.
It develops equally to all effects of a drug.
Which of the following is NOT a characteristic of soaps?
They are sodium or potassium salts of long-chain fatty acids.
They work effectively in hard water.
They have a hydrophilic head and a hydrophobic tail.
They form micelles in water.
Detergents are preferred over soaps in hard water because:
They are cheaper to produce.
They do not form insoluble precipitates with calcium and magnesium ions.
They are less effective cleaning agents.
They have a stronger odor.
The process of forming micelles is driven by:
Hydrogen bonding.
Ionic interactions.
The hydrophobic effect.
Van der Waals forces.
Which of the following is NOT a broad classification of drugs based on their pharmacological effect?
Analgesics
Antiseptics
Antacids
Tranquilizers
Detergents are more effective than soaps in hard water because:
They are more biodegradable
They do not form insoluble precipitates with calcium and magnesium ions
They have a longer hydrocarbon chain
They are cheaper to produce
Which part of a soap molecule helps in dissolving grease or oil in water?
Hydrophilic head
Hydrophobic tail
Both hydrophilic head and hydrophobic tail
Neither hydrophilic head nor hydrophobic tail
Given below are two statements:
Statement I: Aspirin and Paracetamol belong to the class of non-narcotic analgesics.
Statement II: Morphine and Heroin are narcotic analgesics.
In the light of the above statements, choose the correct answer from the options given below.
Both Statement I and Statement II are incorrect
Statement I is correct but Statement II is incorrect
Both Statement I and Statement II are correct
Statement I is incorrect but Statement II is correct
