Q. The concentration of OH⁻ ions in a solution with pH = 4 is:

pH = 4 वाले घोल में OH⁻ आयनों की सांद्रता है:

1 × 10⁻⁴ M
1×10⁻⁴ एम

1 × 10⁻¹⁰ M
1 × 10⁻¹⁰ एम

1 × 10⁻¹⁴ M
1 × 10⁻¹⁴ एम

1 × 10⁻⁷ M
1 × 10⁻⁷ एम

pH=4⇒pOH=14−4=10⇒[OH−]=10−10M

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