The question record

Show the source. Explain the correction.

A running record of what was wrong, what changed, and how to check it.

0 verified records · 3 placeholders. These are record counts, not a count of every check in the question bank.

Placeholder — not a verified correction · extraction

Dropped square root

Source
TO SUPPLY: source book or paper
Year
To supply
Edition / paper code
TO SUPPLY
Question identifier
TO SUPPLY: printed question number and NeetZen bank ID
Source location
TO SUPPLY: printed page and PDF page

The defect

TO SUPPLY: the exact expression after extraction, including the missing radical.

The correction

TO SUPPLY: the expression as printed in the source, preserving the radical and its scope.

Why this correction is right

TO SUPPLY: compare the source with the extracted expression and explain why the corrected notation changes the calculation.

Reviewed by TO SUPPLY · Verification date to supply

Record history

No verified history yet. This is a placeholder.

Placeholder — not a verified correction · extraction

Options collapsed into duplicates

Source
TO SUPPLY: source book or paper
Year
To supply
Edition / paper code
TO SUPPLY
Question identifier
TO SUPPLY: printed question number and NeetZen bank ID
Source location
TO SUPPLY: printed page and PDF page

The defect

TO SUPPLY: the affected option labels and their incorrectly identical text.

The correction

TO SUPPLY: each option's distinct text as printed, keeping the original option order.

Why this correction is right

TO SUPPLY: identify the symbol, formatting or text lost in extraction and explain how the source resolves the ambiguity.

Reviewed by TO SUPPLY · Verification date to supply

Record history

No verified history yet. This is a placeholder.

Placeholder — not a verified correction · source-answer-key

Source answer-key correction

Source
TO SUPPLY: source book or paper
Year
To supply
Edition / paper code
TO SUPPLY
Question identifier
TO SUPPLY: printed question number and NeetZen bank ID
Source location
TO SUPPLY: question page and answer-key page

The defect

TO SUPPLY: the source key's stated option and answer, quoted exactly.

The correction

TO SUPPLY: NeetZen's corrected option and answer. Distinguish our correction from an official erratum.

Why this correction is right

TO SUPPLY: a reproducible derivation or cited NCERT passage that establishes the answer; explain why the printed key fails.

Reviewed by TO SUPPLY · Verification date to supply

Record history

No verified history yet. This is a placeholder.

How this record is maintained

Each entry keeps its source edition, question identifier and permanent link. An extraction defect is different from an error in a printed answer key; the record names which one it is. A NeetZen correction is not an official erratum.

When a correction changes, its earlier decision stays in the dated history. Report a disputed correction to support@neetzen.com with the entry link and your source.