The catalyst that is used in the contact process is:
1. Fe2O3
2. Al2O3
3. V2O5
4. SO3
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe chemical formula of oleum is -
1. H2S2O8
2. H2S2O7
3. H3S2O6
4. H2SO5
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct order of bond dissociation energy of halogens is-
1. F2 < Cl2 < Br2 < I2
2. I2 > Br2 > F2 > Cl2
3. Cl2 > Br2 < F2 > I2
4. I2 < F2 < Br2 < Cl2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
What is the correct sequence of the basic strength hydrides in increasing order?
1. BiH3 \(\simeq \) SbH3 < AsH3 < PH3 < NH3
2. BiH3 > NH3 > PH3 > SbH3 > AsH3
3. SbH3 < AsH3 < PH3 < NH3 < BiH3
4. AsH3 > NH3 > PH3 > SbH3 > BiH3
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe bonding present in nitrogen molecules is:
1. \(p\pi-p\pi\)
2. \(p\pi-d\pi\)
3. \(d\pi-d\pi\)
4. Only sigma bond
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following is true about reactivity of group 15 elements?
1. Stability of their hydrides increases down the group.
2. Higher oxides are acidic in nature.
3. All elements form pentahalides.
4. They do not react with metals.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe element from group 15 that forms a strong bond with hydrogen is:
1. N
2. P
3. As
4. Sb
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe condition that does not exist in the Haber process
for the manufacturing of ammonia is?
1. Pressure (around 200 ×105 Pa)
2. Temperature (700 K)
3. Catalyst such as iron oxide
4. Presence of inert gases
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAssertion: Phosphorous (V) has a tendency to only gain electrons as it is in its highest oxidation state.
Reason: PCl5 can act as an oxidizing as well as a reducing agent.
1. Assertion is true and Reason is correct explanation of Assertion.
2. Assertion is true but Reason is not the correct explanation of Assertion.
3. Assertion is true but Reason is false.
4. Both Assertion and Reason are false.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyNumber of moles of copper used when
(i) Copper reacts with dilute nitric acid
(ii) Copper reacts with concentrated nitric acid
are respectively:-
1. 1,1
2. 1,3
3. 3,1
4. 3,3
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology