Which of the following statements are not true for hydrogen?
a. | It exists as a diatomic molecule. |
b. | It has one electron in the outermost shell |
c. | It can lose an electron to form a cation that can freely exist |
d. | It forms a large number of ionic compounds by losing an electron |
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyDihydrogen can be prepared on a commercial scale by different methods. In its preparation by the action of steam on hydrocarbons, a mixture of CO and H2 gas is formed. It is known as _____.
a. Water gas
b. Syngas
c. Producer gas
d. Industrial gas
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statements about hydrogen are correct?
1. | Hydrogen has three isotopes of which protium is the most common |
2. | Hydrogen never acts as a cation in ionic salts |
3. | Hydrogen ion, H+, exists freely in solution |
4. | Dihydrogen does not act as a reducing agent |
Choose the correct option
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyHydrogen resembles halogens in many respects for which several factors are responsible. Of the following factors which one is most important in this respect?
1. | Its tendency to lose an electron to form a cation. |
2. | Its tendency to gain a single electron in its valence shell to attain stable electronic configuration. |
3. | Its low negative electron enthalpy value. |
4. | Its small size. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyH+ ions always get associated with other atoms or molecules due to -
1. | Ionisation enthalpy of hydrogen resembles that of alkali metals |
2. | Its reactivity is similar to halogens |
3. | It resembles both alkali metals and halogens |
4. | Loss of an electron from hydrogen atom results in a nucleus of very small size as compared to other atoms or ions. Due to small size it cannot exist free |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following reactions increases production of dihydrogen from synthesis gas?
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyHydrogen peroxide is obtained by the electrolysis of ______.
1. water
2. sulphuric acid
3. hydrochloric acid
4. fused sodium peroxide
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology