Q. No.\(C_{15}H_{30}\) is used as rocket fuel. The masses of oxygen used and \(CO_2\) produced per litre of consumption of \(C_{15}H_{30}\), respectively, are:
(Given: Density of \(C_{15}H_{30} \) = 0.756 gram/ml)
1. 2592 gram, 2376 gram
2. 2376 gram, 2592 gram
3. 2592 gram, 2868 gram
4. 2868 gram, 2776 gram
(Given: Density of \(C_{15}H_{30} \) = 0.756 gram/ml)
1. 2592 gram, 2376 gram
2. 2376 gram, 2592 gram
3. 2592 gram, 2868 gram
4. 2868 gram, 2776 gram
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0.1 M, 10 ml of an acid 'A' gets completely neutralized by 0.05 M, 20 ml of base \(M(OH)_2 \) . The basicity of acid 'A' is:
(here M is metal)
1. 4
2. 3
3. 2
4. 1
(here M is metal)
1. 4
2. 3
3. 2
4. 1
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0.4 g mixture of NaOH, Na2CO3 and some inert impurities was first titrated with HCl using phenolphthalein as an indicator, 17.5 mL of HCl was required at the end point. After his methyl orange was added and titrated. 1.5 mL of same HCl was required for the next end point. The weight percentage of Na2CO3 in the mixture is- (Rounded-off to the nearest integer)
1. 6 %
2. 4 %
3. 7 %
4. 9 %
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1 gram of a carbonate (M2CO3) on treatment with excess HCl produces 0.01186 moles of CO2. The molar mass of M2CO3 in g mol–1 is:
1. 118.6
2. 11.86
3. 88.6
4. 84.3
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5 grams of pent-1-ene react with how many grams of \(Br_2 \) completely?
| 1. | 13.4 g | 2. | 9.4 g |
| 3. | 11.4 g | 4. | 15.8 g |
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The number of moles of methane required for the combustion process to yield 81 grams of water is:
1. 2.25 mole
2. 4.5 mole
3. 9 mole
4. 1.125 mole
1. 2.25 mole
2. 4.5 mole
3. 9 mole
4. 1.125 mole
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6.1 gram of CNG on combustion with 208 grams of O2(g) produces, CO2(g) & H2O with a lot of heat. The amount of CO2 produced in grams is:
[Consider CNG as methane and report your answer to the nearest integer].
1. 15 g
2. 19 g
3. 17 g
4. 21 g
[Consider CNG as methane and report your answer to the nearest integer].
1. 15 g
2. 19 g
3. 17 g
4. 21 g
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CNG is an important transportation fuel. When 100 g CNG is mixed with 208 g oxygen in vehicles, it leads to the formation of CO2 and H2O and produces a large quality of heat during this combustion, then the amount of carbon dioxide, produced in grams is- [nearest integer]
[Assume CNG to be methane]
1. 148 g
2. 157 g
3. 143 g
4. 153 g
[Assume CNG to be methane]
1. 148 g
2. 157 g
3. 143 g
4. 153 g
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The moles of methane required to produce 81 g of water after complete combustion is A× 10-2 mol. The value of A is:
[nearest integer]
[nearest integer]
| 1. | 240 | 2. | 225 |
| 3. | 204 | 4. | 198 |
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Consider the following reaction:
\(\mathrm{4 {HNO}_3({l})+3 {KCl}({s})} → \\\mathrm{{Cl}_2({g})+{NOCl}({g})+2 {H}_2 {O}({g})+3 {KNO}_3({s})}\)
How much \(\text{HNO}_3\) (in grams) is required to produce 110.0 g of \(\text{KNO}_3\)?
(Given: Atomic masses of H, O, N, and K are 1, 16, 14, and 39, respectively.)
1. 32.2g
2. 69.4g
3. 91.5g
4. 162.5g
\(\mathrm{4 {HNO}_3({l})+3 {KCl}({s})} → \\\mathrm{{Cl}_2({g})+{NOCl}({g})+2 {H}_2 {O}({g})+3 {KNO}_3({s})}\)
How much \(\text{HNO}_3\) (in grams) is required to produce 110.0 g of \(\text{KNO}_3\)?
(Given: Atomic masses of H, O, N, and K are 1, 16, 14, and 39, respectively.)
1. 32.2g
2. 69.4g
3. 91.5g
4. 162.5g
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