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Khulna Board · Chemistry

Kha Bhandar · খ ভাণ্ডার

15 questions · 3 marks each

1
Periodic TableMarks: 3

Explain briefly: Which of these is a noble gas?

2
BondsMarks: 3

Explain briefly: Water molecule has how many hydrogen atoms?

3
AcidsMarks: 3

Explain briefly: pH of pure water at 25°C is:

4
ReactionsMarks: 3

Explain briefly: Which is an oxidising agent?

5
OrganicMarks: 3

Explain briefly: Simplest alkane is:

6
Periodic TableMarks: 3

Explain briefly: Which of these is a noble gas?

7
BondsMarks: 3

Explain briefly: Water molecule has how many hydrogen atoms?

8
AcidsMarks: 3

Explain briefly: pH of pure water at 25°C is:

9
ReactionsMarks: 3

Explain briefly: Which is an oxidising agent?

10
OrganicMarks: 3

Explain briefly: Simplest alkane is:

11
Periodic TableMarks: 3

Explain briefly: Which of these is a noble gas?

12
BondsMarks: 3

Explain briefly: Water molecule has how many hydrogen atoms?

13
AcidsMarks: 3

Explain briefly: pH of pure water at 25°C is:

14
ReactionsMarks: 3

Explain briefly: Which is an oxidising agent?

15
OrganicMarks: 3

Explain briefly: Simplest alkane is:

Tip: Practice writing answers before revealing.