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

Discussions

Active Users

Followers

New answer posted

8 months ago

Chemistry Bond Parameters

Why the bond length in NO? is shorter than in NO?

0 Follower 4 Views

Aayush Kumari

Beginner-Level 5

The NO (Nitric Oxide) has 11 valence electrons while the NO? (Nitrosonium ion) has 10 valence electrons due to removal of one antibonding electron. Due to this, the bond order of NO increases from? 2.5 to 3 in the NO? (Nitrosonium ion).

As per the NCERT, since the bond order of NO? (3) is higher than that of NO (2.5), the bond in Nitrosonium ion is stronger bond and the stronger the bond, the shorter bond length.

Hence bond length in NO? is shorter the NO.

0 0

New answer posted

8 months ago

Chemistry Class 12th

A compound 'X' is a weak acid and it exhibits colour change at pH close to the equivalence point during neutralization of NaOH with CH₃COOH. Compound 'X' exists in ionized form in basic medium. The compound 'X' is

0 Follower 1 View

alok kumar singh

Contributor-Level 10

Phenolphthalein is the indicator of weak acid which produces pink colour in basic medium.

0 0

New answer posted

8 months ago

Chemistry Class 12th

For kinetic study of the reaction of iodide ion with H₂O₂ at room temperature:

(A) Always use freshly prepared starch solution.

(B) Always keep the concentration of sodium thiosulphate solution less than that of Kl solution.

(C) Record the time immediately after the appearance of blue colour.

(D) Record the time immediately before the appearance of blue colour.

(E) Always keep the concentration of sodium thiosulphate solution more than that of Kl solution.

Choose the correct answer from the options given below:

0 Follower 5 Views

Vishal Baghel

Contributor-Level 10

Always fresh solution of starch used and recorded immediately after the blue colour appears. Na2S2O3 is used in limited amount.

0 0

New answer posted

8 months ago

Chemistry Biomolecules

Given below are two statements : One is labeled as Assertion A and the other is labelled as Reason R

Assertion A : Amylose is insoluble in water.

Reason R: Amylose is a long linear molecules with more than 200 glucose units.

In the light of the above statements, choose the correct answer from the options given below

0 Follower 3 Views

alok kumar singh

Contributor-Level 10

Amylose is the water soluble compound.

0 0

New answer posted

8 months ago

Chemistry Class 12th

Statement about Enzyme Inhibitor Drugs are given below:

(A) There are Competitive and Non-competitive inhibitor drugs.

(B) These can bind at the active sites and allosteric sites.

(C) Competitive Drugs are allosteric site blocking drugs.

(D) Non-competitive Drugs are active site blocking drugs.

Choose the correct answer from the options given below:

0 Follower 2 Views

Vishal Baghel

Contributor-Level 10

Enzyme inhibitors are competitive inhibitors if they inhibit the attachment of substrate on active site of enzyme. Enzyme inhibitors are non- competitive inhibitors if they changes the active site of enzyme after binding at allosteric site.

0 0

New answer posted

8 months ago

Chemistry Biomolecules

For the below given cyclic hemiacetal (X), the correct pyranose structure is: