and which is

USAGE SUMMARY

The phrase "and which is" is correct, and it can be used in written English.
It can be used to introduce a clause that provides additional information about the noun from the preceding clause. For example: The picnic was a great success, and which is why we're planning to have another one next month.

✓ Grammatically correct

News & Media

Science

Academic

Human-verified examples from authoritative sources

Exact Expressions

58 human-written examples

And which is ripe understatement.

The New York Times

And which is the most classic episode?

Independent

Which is male and which is female?

The New York Times

And which is why kerosene was winning.

The New Yorker

And which is 2014's must-have?

The Guardian - Tech

Which is chicken and which is egg?

The Guardian

And which is better: the Palm or the Pocket PC?

The New York Times - Tech

But which is the seventy and which is the thirty?

The New Yorker

And which is he going with for his 50th?

The Guardian - Film

And which is why our mothers are worried about us.

The New York Times

Which tap is hot and which is cold.

The New Yorker

Expert writing Tips

Best practice

In news writing, use this phrase to add a punchy, additional detail at the end of a sentence for rhetorical effect, especially in rhetorical questions.

Common error

Avoid using "and which is" if you have not already established a relative clause. For example, writing "The house is red, and which is large" is incorrect because there is no initial "which" for the "and" to coordinate with. Instead, simply use "<a href="/s/which+is" target="_blank" rel="alternative">which is" or "<a href="/s/and+it+is" target="_blank" rel="alternative">and it is".

Linguistic Context

The phrase "and which is" functions as a coordinated relative clause connector. It combines the coordinating conjunction "and" with the relative pronoun "which" and the copula "is". According to Ludwig, it is primarily used to provide additional non-restrictive information about a noun that has often already been modified by a preceding relative clause.

Expression frequency: Very common

Frequent in

News & Media

65%

Science

20%

Academic

10%

Less common in

Wiki

3%

Social Media

1%

Business

1%

Ludwig's WRAP-UP

In conclusion, "and which is" is a highly versatile and grammatically correct phrase used to link supplementary information. Ludwig AI shows that it excels in maintaining parallelism within complex sentences and is a favorite tool of journalists for adding a final, clarifying punch to a description. Whether used in scientific formulas or literary prose, it helps bridge the gap between two related attributes of a single subject. Writers should simply be careful to ensure that the "and" has a preceding clause to latch onto, avoiding the common error of a lonely conjunction. For a smoother flow, consider alternatives like "<a href="/s/which+is+also" target="_blank" rel="alternative">which is also" when brevity is preferred.

More alternative expressions

Phrases that express similar concepts, ordered by semantic similarity:

which is also

Emphasizes the addition of a secondary characteristic without using a conjunction.

and it is

Creates a coordinate clause rather than a relative clause, often starting a new independent thought.

and this is

Uses a demonstrative pronoun to point back more directly to the preceding clause.

that is also

A more restrictive version of the phrase, often used for essential identifying information.

as well as being

Uses a gerund phrase to add information, often making the sentence feel more fluid.

a fact which is

Adds a noun-phrase appositive for extra emphasis on the specific detail being introduced.

while being

Suggests a simultaneous state or a slight contrast between the two descriptors.

furthermore it is

Increases the level of formality and creates a stronger transition between points.

including the

A more specific alternative when the added information is a subset or part of a larger group.

namely

Used when the follow-up information specifically identifies or names what was previously mentioned.

FAQs

How do I use "and which is" in a sentence?

You can use it to add a second descriptive detail to a noun, like in: "I found a book which was old and which is now very rare". It is also frequently used in journalism to start a follow-up question, such as: "And which is the most classic episode?"

Is it correct to start a sentence with "and which is"?

Yes, in stylistic or journalistic writing, starting a sentence with "and which is" can emphasize a specific point or question. However, in formal academic writing, it is often better to use a complete sentence like "<a href="/s/this+is+also" target="_blank" rel="alternative">this is also" or "<a href="/s/furthermore+it+is" target="_blank" rel="alternative">furthermore it is".

What can I use instead of "and which is"?

Depending on your sentence, you can use "<a href="/s/which+is+also" target="_blank" rel="alternative">which is also", "<a href="/s/and+is" target="_blank" rel="alternative">and is", or "<a href="/s/as+well+as+being" target="_blank" rel="alternative">as well as being".

What is the difference between "which is" and "and which is"?

The phrase "<a href="/s/which+is" target="_blank" rel="alternative">which is" starts a single relative clause, while "and which is" typically adds a second relative clause or follows up on a previous thought to provide additional information.