FREE CHEMISTRY ONLINE TEST – 05

22 ఆగస్ట్ 20256 సెప్టెంబర్ 2026 - by Saheb Shaik

BIKKI NEWS : Free chemistry online test 05 for JEE NEET EAPCET EXAMS. జేఈఈ నీట్ ఎఫ్‌సెట్ వంటి ప్రవేశ పరీక్షల కొరకు ఉచితంగా కెమిస్ట్రీ ఆన్లైన్ టెస్ట్ లను విద్యార్థుల కొరకు అందించడం జరుగుతుంది.

Free chemistry online test 05 for JEE NEET EAPCET EXAMS

CHEMISTRY ONLINE TEST 05

1 / 10

According to Arrhenius concept, an acid is:

A substance that gives H⁺ ions in solution

A substance that gives OH⁻ ions in solution

A substance that accepts a proton

A substance that donates a pair of electrons

2 / 10

Which of the following is a Lewis acid?

NH₃

H₂O

OH⁻

BF₃

3 / 10

In aqueous solution, which acid is stronger?

CH₃COOH

HCl

H₂CO₃

4 / 10

Which of the following pairs represents conjugate acid-base pair?

HCl / Cl⁻

NH₄⁺ / NH₃

H₂O / OH⁻

All of these

5 / 10

pH of 0.01 M HCl solution is:

6 / 10

The base dissociation constant (K_b) of NH₃ is 1.8 × 10⁻⁵. What is the pK_b value?

5.74

4.74

3.74

2.74

7 / 10

Which of the following solutions will have the highest pH?

0.1 M NaOH

0.1 M HCl

0.1 M CH₃COOH

0.1 M NH₄Cl

8 / 10

buffer solution can be prepared from:

Strong acid + strong base

Weak base + its salt with strong acid

Weak acid + its salt with strong base

Both (b) and (c)

9 / 10

The ionic product of water (K_w) at 25 °C is:

1 × 10⁻¹²

1 × 10⁻¹⁴

1 × 10⁻¹⁶

1 × 10⁻¹⁰

10 / 10

Which of the following indicators is suitable for strong acid–strong base titration?

Methyl orange

Phenolphthalein

Both (a) and (b)

None

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Free chemistry online test 05 for JEE NEET EAPCET EXAMS

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