Search Colleges, Courses, Exams, Questions and Articles

Ask a query on 8879100846 Ask Login | Sign Up

 

 
› Tags › Chemistry

Chemistry

Get insights from 6.9k questions on Chemistry, answered by students, alumni, and experts. You may also ask and answer any question you like about Chemistry

Follow Ask Question
6.9k

Questions

0

Discussions

25

Active Users

0

Followers

New answer posted

9 months ago

Chemistry Chemistry NCERT Exemplar Solutions Class 12th Chapter Sixteen

Assertion (A): Enzymes have active sites that hold substrate molecule for a chemical reaction.

Reason (R): Drugs compete with natural substrate by attaching covalently to the active site of enzyme.

(a) Assertion and reason both are correct statements but reason does not explain assertion.

(b) Assertion and reason-both are correct statements and reason explains the assertion.

(c) Both assertion and reason are wrong statement.

(d) Assertion is correct statement and reason is wrong statements.

(e) Assertion is wrong statements and reason is correct statement.

 
0 Follower 2 Views

P
Payal Gupta

Contributor-Level 10

This is a assertion and reason answer type question as classified in NCERT Exemplar

(d) Drugs compete with natural substrate by attaching by weak bonds such as ionic bonding. H-bonding, van there Waals interaction, etc., to the active site of the enzyme.

New answer posted

9 months ago

Chemistry Chemistry NCERT Exemplar Solutions Class 12th Chapter Sixteen

Assertion (A): Receptors are crucial to body's communication process.

Reason (R): Receptors are proteins.

(a) Assertion and reason both are correct statements but reason does not explain assertion.

(b) Assertion and reason-both are correct statements and reason explains the assertion.

(c) Both assertion and reason are wrong statement.

(d) Assertion is correct statement and reason is wrong statements.

(e) Assertion is wrong statements and reason is correct statement.
0 Follower 3 Views

P
Payal Gupta

Contributor-Level 10

This is a assertion and reason answer type question as classified in NCERT Exemplar

  (a) Neurotransmitters are small molecular which bind to the receptor for a very short time to transfer message to it and depart quickly unchanged after transferring the message, the receptor then forwards the message inside the cell. Receptors are proteins and they participate in the communication system of our body.

New answer posted

9 months ago

Chemistry Chemistry NCERT Exemplar Solutions Class 12th Chapter Sixteen

Assertion (A): Sulpha drug contain sulphonamide group.

Reason (R): Salvarsan is a sulpha drug.

(a) Assertion and reason both are correct statements but reason does not explain assertion.

(b) Assertion and reason-both are correct statements and reason explains the assertion.

(c) Both assertion and reason are wrong statement.

(d) Assertion is correct statement and reason is wrong statements.

(e) Assertion is wrong statements and reason is correct statement.
0 Follower 1 View

P
Payal Gupta

Contributor-Level 10

This is a assertion and reason answer type question as classified in NCERT Exemplar

(d) Salvarsan is an antibacterial drug containing arsenic and it does not contain sulphonamide group.

New answer posted

9 months ago

Chemistry Chemistry NCERT Exemplar Solutions Class 12th Chapter Sixteen

In the following questions, a statement of Assertion (A) followed by a statement of Reason (R) is given. Choose the correct answer out of the following choices:

Assertion (A): Penicillin (G) is an antihistamine.

Reason (R): Penicillin (G) is effective against gram positive as well as gram negative bacteria. 

(a) Assertion and reason both are correct statements but reason does not explain assertion.

(b) Assertion and reason-both are correct statements and reason explains the assertion.

(c) Both assertion and reason are wrong statement.

(d) Assertion is correct statement and reason is wrong statements.

(e) Assertion is wrong stateme

...more
0 Follower 2 Views

P
Payal Gupta

Contributor-Level 10

This is a assertion and reason answer type question as classified in NCERT Exemplar

(c) Penicillin (G) is not a broad spectrum antibiotic so it is not effective against some gram positive and gram negative bacteria.

New answer posted

9 months ago

Chemistry Chemistry NCERT Exemplar Solutions Class 12th Chapter Sixteen

Match the classes of drugs given in Column I with their action given in Column II.

Column I

Column II

(i) Analgesics

(a) Inhibit the growth of microorganisms can be given orally.

(ii) Antiseptics

(b) Treatment of stress

(iii) Antihistamines

(c) Applied to inanimate objects

(iv) Antacids

(d) Prevents the interaction of histamine with its receptor

(v) Tranquilisers

(e) Pain killing effect

(vi) Antibiotics

(f) Applied to diseased skin surfaces

(vii) Disinfectants

(g) Treatment of acidity
0 Follower 2 Views

P
Payal Gupta

Contributor-Level 10

This is a matching answer type question as classified in NCERT Exemplar

(i) → (e) (ii) → (f) (iii) → (d) (iv) → (g) (v) → (b) (vi) → (a) (vii) → (c)

New answer posted

9 months ago

Chemistry Chemistry NCERT Exemplar Solutions Class 12th Chapter Sixteen

Match the class of compounds given in Column I with their functions given in Column II.

Column I

Column II

(i) Antagonists

(a) Communicate message between two neurons and that between neurons to muscle

(ii) Agonists

(b) Bind to the receptor site and inhibit its natural function

(iii) Chemical messenger

(c) Crucial to body's communication process

(iv) Inhibitors

(d) Mimic the natural messenger

(v) Receptors

(e) Inhibit activities of enzymes.
0 Follower 2 Views

P
Payal Gupta

Contributor-Level 10

This is a matching answer type question as classified in NCERT Exemplar

(i) → (b) (ii) → (d) (iii) → (a) (iv) → (e) (v) → (c)

New answer posted

9 months ago

Chemistry Chemistry NCERT Exemplar Solutions Class 12th Chapter Sixteen

Match the detergents given in Column I with their uses given in Column II.

 
0 Follower 2 Views

P
Payal Gupta

Contributor-Level 10

This is a matching answer type question as classified in NCERT Exemplar

(i) → (c) (ii) → (d) (iii) → (b) (iv) → (a)

New answer posted

9 months ago

Chemistry Chemistry NCERT Exemplar Solutions Class 12th Chapter Sixteen

Match structures given in Column I with the type of detergents given in Column II.

 
0 Follower 2 Views

P
Payal Gupta

Contributor-Level 10

This is a matching answer type question as classified in NCERT Exemplar

(i) → (c) (ii) → (d) (iii) → (b) (iv) → (a)

New answer posted

9 months ago

Chemistry Chemistry NCERT Exemplar Solutions Class 12th Chapter Sixteen

Match the soaps given in Column I with items given in Column II.

Column I (Soap) 

Column II (Description)

(i) Soap chips

 (a) Dried miniature soap bubbles

(ii) Soap granules 

(b) Small broken pieces of soap formed from melted soaps

(iii) Soap powder

 (c) Soap powder + abrasives + builders (Na?CO?, Na?PO?)

(iv) Scouring soap 

(d) Soap powder + builders like Na?CO? and Na?PO?

 
0 Follower 2 Views

P
Payal Gupta

Contributor-Level 10

This is a matching answer type question as classified in NCERT Exemplar

(i) → (b) (ii) → (a) (iii) → (d) (iv) → (c)

New answer posted

9 months ago

Chemistry Chemistry NCERT Exemplar Solutions Class 12th Chapter Sixteen

Match the medicines given in Column I with their use given in Column II.

Column I (Medicine)

Column II (Use)

(i) Ranitidine

(a) Tranquilizer

(ii) Furacine

(b) Antibiotic

(iii) Phenelzine

(c) Antihistamine

(iv) Chloramphenicol

(d) Antiseptic

 

(e) Antifertility drug
0 Follower 2 Views

P
Payal Gupta

Contributor-Level 10

This is a matching answer type question as classified in NCERT Exemplar

(i) → (c) (ii) → (d) (iii) → (a) (iv) → (b)

Get authentic answers from experts, students and alumni that you won't find anywhere else

Sign Up on Shiksha

On Shiksha, get access to

  • 66k Colleges
  • 1.2k Exams
  • 687k Reviews
  • 1800k Answers

Share Your College Life Experience

Write a Review
Community GuidelinesUser Points System
QuestionsDiscussionsTags

×
×

This website uses Cookies and related technologies for the site to function correctly and securely, improve & personalise your browsing experience, analyse traffic, and support our marketing efforts and serve the Core Purpose. By continuing to browse the site, you agree to Privacy Policy and Cookie Policy.