- 1(current)
Q. No.\(\left[\mathrm{CaCO}_3 \stackrel{1200 \mathrm{~K}}{\longrightarrow} \mathrm{CaO}+\mathrm{CO}_2\right] \)
| 1. | 1.32 g | 2. | 1.12 g |
| 3. | 1.76 g | 4. | 2.64 g |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyCaCO3(s) + 2HCl(aq) → CaCl2(aq) + CO2(g) + 2H2O(l)
[Calculate up to the second place of decimal point]
| 1. | 9.50 g | 2. | 1.25 g |
| 3. | 1.32 g | 4. | 3.65 g |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology| 1. | 40 mol | 2. | 10 mol |
| 3. | 20 mol | 4. | 30 mol |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySuppose the elements X and Y combine to form two compounds XY2 and X3Y2. If 0.1 mole of XY2 weighs 10 g and 0.05 mole of X3Y2 weighs 9 g, the atomic weight of X and Y respectively, will be:
| 1. | 40, 30 | 2. | 60, 40 |
| 3. | 20, 30 | 4. | 30, 20 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat is the mass of precipitate formed when 50 mL of 16.9% solution of AgNO3 is mixed with 50 mL of 5.8% NaCl solution? (Ag = 107.8, N = 14, O = 16, Na= 23, Cl = 35.5)
1. 28 g
2. 3.5 g
3. 7 g
4. 14 g
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe volume of oxygen gas (O2) needed to completely burn 1 L of propane gas (C3H8) (both O2 & propane measured at 0°C and 1 atm) will be:
1. 7 L
2. 6 L
3. 5 L
4. 10 L
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe mass of carbon anode consumed (giving only carbon dioxide) in the production of 270 kg of aluminum metal from bauxite by the Hall process is:
1. 90 kg
2. 540 kg
3. 180 kg
4. 270 kg
(Atomic mass : Al = 27)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe volume of CO2 obtained by the complete decomposition of 9.85 grams of BaCO3 is:
1. 2.24 lit.
2. 1.12 lit.
3. 0.84 lit.
4. 0.56 lit
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology0.33% of iron (by weight) is present in hemoglobin (Molecular wt = 67200).
The number of iron atom(s) in one molecule will be:
1. 1
2. 2
3. 3
4. 4
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology- 1(current)
Q. No.
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