The chemical formula of Plaster of Paris is:
1.
2.
3.
4. 3CaSO4.H2O
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe number of crystal water in Gypsum, Plaster of Paris and Epsom salt respectively are-
1. 2, 0.5, 7
2. 7, 2, 1
3. 7, 0.5, 2
4. 3, 4, 2
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA compound X on heating gives a colourless gas. The residue is dissolved in water to obtain Y. Excess is bubbled through an aqueous solution of Y, and Z is formed. Z on gentle heating gives back X. The compound X is-
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyPotassium carbonate cannot be prepared by the Solvay process because -
1. | Potassium carbonate is insoluble in water and does not precipitate out. |
2. | Potassium carbonate is soluble in water and does not precipitate out. |
3. | Potassium carbonate is soluble in water and does precipitate out. |
4. | Potassium carbonate is insoluble in water and does precipitate out. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAn active ingredient in bleaching powder that aids in the bleaching action is:
1.
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA Brine solution on electrolysis will not give :
1. NaOH
2.
3.
4.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyGypsum on heating can change to :
1. Orthorhombic form.
2. Plaster of paris.
3. Dead plaster.
4. All of the above.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMagnesia can be prepared by -
1. Burning Mg in air.
2. Heating hydroxide, nitrate, sulphate or carbonate of magnesium.
3. Heating Mg in steam.
4. All of the above.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe suspension of slaked lime in water is known as -
1. Limewater.
2. Quicklime.
3. Milk of lime.
4. Aqueous solution of slaked lime.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyQuick lime is heated with silica to give:
1. CaSiO3
2. CaSiO4
3. CaSiO
4. Ca(SiO)3
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology