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基礎問題集 - 化学(CHEMISTRY)

 

問題数は全部で1002問あり、そのうち30問がランダムに出題されます。

正解の選択肢は1つのみです。問題の解答・解説は最後に表示されます。

制限時間は30分です。問題は毎回ランダムで出題される点にご注意ください。

1 / 30

Which of the following compounds is a carbohydrate?

2 / 30

In the transformation from a neutral atom to an ion, the atom loses or gains:

3 / 30

Maltose is:

4 / 30

At which pH is the hydrogen-ion concentration highest?

5 / 30

A species that is reduced:

6 / 30

The formula of hydrogen sulphide is:

7 / 30

The ionic product of water \([H^+][OH^-]\) is equal to:

8 / 30

In the H₂ molecule, the two hydrogen atoms are joined by a:

9 / 30

Which is the nitrite ion?

10 / 30

In the reaction \(Zn + FeCl_2 → ZnCl_2 + Fe\), the element that is reduced is:

11 / 30

The bond between a nitrogenous base and ribose or deoxyribose gives rise to:

12 / 30

A solution with \([OH^-] = 10^{-1} M\) is:

13 / 30

What are the products of combustion of methane?

14 / 30

The number of hydrogen atoms contained in one mole of \(H_2O\) is:

15 / 30

The acid HNO3 is:

16 / 30

Proton concentration is given by:

17 / 30

What is the oxidation number of chromium in \(K_2CrO_4\)?

18 / 30

The van der Waals bond is:

19 / 30

Which of the following is methylene chloride?

20 / 30

The number of moles of a solute per litre of solution expresses:

21 / 30

Indicate the alkali cation:

22 / 30

The ionic product of water at 25 °C is:

23 / 30

A 3d orbital can be characterised by:

24 / 30

A mole of molecules is:

25 / 30

The spin quantum number can take the values:

26 / 30

A 0.1 M solution contains how many moles of solute per litre?

27 / 30

Gastric juice has a pH that is:

28 / 30

Which symbol represents boron?

29 / 30

Water molecules are:

30 / 30

A solution has pH = 1. The value of \([OH^-]\) is:

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