Which of the following statements is wrong?
1. | Single N—N bond is stronger than a single P—P bond. |
2. | can act as a ligand in the formation of coordination compound with transition elements. |
3. | is paramagnetic in nature. |
4. | Covalency of nitrogen in is four. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe oxidation state of the central atom in the anion of the compound will be-
1. +3
2. +5
3. +1
4. -3
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following is not tetrahedral in shape?
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following are peroxoacids of sulphur?
1. | \(\mathrm{H_{2} SO_{5} } \text{ and } \mathrm{H_{2} S_{2} O_{8}}\) | 2. | \(\mathrm{H_{2} SO_{5 }} \text{ and } \mathrm{H_{2} S_{2} O_{7}}\) |
3. | \(\mathrm{H_{2} S_{2} O_{7}} \text{ and } \mathrm{H_{2} S_{2} O_{8}}\) | 4. | \(\mathrm{H_{2} S_{2} O_{6}} \text{ and } \mathrm{H_{2} S_{2} O_{7}}\) |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyHot conc. acts as moderately strong oxidising agent. It oxidises both metals and non-metals. Which of the following element is oxidised by conc. into two gaseous products?
1. | Cu | 2. | S |
3. | C | 4. | Zn |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statements are correct for SO2 gas?
a. | It acts as a bleaching agent in moist conditions. |
b. | Its molecule has linear geometry. |
c. | Its dilute solution is used as a disinfectant. |
d. | It can be prepared by the reaction of dilute H2SO4 with metal sulphide. |
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, c)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following statements are correct?
a. | All the three N – O bond lengths in HNO3 are equal. |
b. | All P – Cl bond lengths in PCl5 molecule in the gaseous state are equal. |
c. | P4 molecule in white phosphorus have angular strain therefore white phosphorus is very reactive. |
d. | PCl5 is ionic in a solid-state in which cation is tetrahedral and the anion is octahedral. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following orders are correct as per the properties mentioned against each?
Column I | Column II | ||
(a) | As2O3 < SiO2 < P2O3 < SO2 | (i) | Acid strength. |
(b) | AsH3 < PH3 < NH3 | (ii) | Enthalpy of vaporisation. |
(c) | S < O < Cl < F | (iii) | More negative electron gain enthalpy. |
(d) | H2O > H2S > H2Se > H2Te | (iv) | Thermal stability. |
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 are correct?
a. | S — S bond is present in H2S2O6 |
b. | In peroxosulphuric acid (H2SO5) sulphur is in +6 oxidation state |
c. | Iron powder along with Al2O3 and K2O is used as a catalyst in the preparation of NH3 by Haber's process |
d. | Change in enthalpy is positive for the preparation of SO3 by catalytic oxidation of SO2 |
1. (a, b)
2. (b, c)
3. (c, d)
4. (a, d)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn which of the following reactions conc. H2SO4 is used as an oxidising reagent?
a. | CaF2 + H2SO4 → CaSO4 + 2 HF |
2. | 2HI + H2SO4 → I2 + SO2 + 2H2O |
3. | Cu + 2H2SO4 → CuSO4 + SO2 + 2H2O |
4. |
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 & Biology