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P, Q, R are different colourless solids, while S is a colourless solution. They are (in random order) Sodium chloride (NaCl), Calcium Carbonate (CaCO3), Acetic acid (CH3COOH) and Phenolphthalein indicator. Small amount of the above substances were added in pairs (e.g. P with Q; Q with R etc.) to a small amount of water in a test tube. They give the following results as shown in the observation table. Observation Table:




Which of the following reaction is incorrect:

  • a)
    Phenolphthalein + NaCl →Acidic medium (Blue colour)

  • b)
    Phenolphthalein + CaCO3 (R) → Alkaline medium (Dark Pink Colour)

  • c)
    Phenolphthalein (P) + NaCl (Q) → No reaction

  • d)
    CaCO3 (R) + 2CH3COOH (S) → (CH3COO)2Ca + CO2 (effervescence) + 2H2O

Correct answer is option 'A'. Can you explain this answer?
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P, Q, R are different colourless solids, while S is a colourless solution. They are (in random order) Sodium chloride (NaCl), Calcium Carbonate (CaCO3), Acetic acid (CH3COOH) and Phenolphthalein indicator. Small amount of the above substances were added in pairs (e.g. P with Q; Q with R etc.) to a small amount of water in a test tube. They give the following results as shown in the observation table. Observation Table:Which of the following reaction is incorrect:a)Phenolphthalein + NaCl →Acidic medium (Blue colour)b)Phenolphthalein + CaCO3 (R) → Alkaline medium (Dark Pink Colour)c)Phenolphthalein (P) + NaCl (Q) → No reactiond)CaCO3 (R) + 2CH3COOH (S) → (CH3COO)2Ca + CO2 (effervescence) + 2H2OCorrect answer is option 'A'. Can you explain this answer?
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P, Q, R are different colourless solids, while S is a colourless solution. They are (in random order) Sodium chloride (NaCl), Calcium Carbonate (CaCO3), Acetic acid (CH3COOH) and Phenolphthalein indicator. Small amount of the above substances were added in pairs (e.g. P with Q; Q with R etc.) to a small amount of water in a test tube. They give the following results as shown in the observation table. Observation Table:Which of the following reaction is incorrect:a)Phenolphthalein + NaCl →Acidic medium (Blue colour)b)Phenolphthalein + CaCO3 (R) → Alkaline medium (Dark Pink Colour)c)Phenolphthalein (P) + NaCl (Q) → No reactiond)CaCO3 (R) + 2CH3COOH (S) → (CH3COO)2Ca + CO2 (effervescence) + 2H2OCorrect answer is option 'A'. Can you explain this answer? for Class 10 2024 is part of Class 10 preparation. The Question and answers have been prepared according to the Class 10 exam syllabus. Information about P, Q, R are different colourless solids, while S is a colourless solution. They are (in random order) Sodium chloride (NaCl), Calcium Carbonate (CaCO3), Acetic acid (CH3COOH) and Phenolphthalein indicator. Small amount of the above substances were added in pairs (e.g. P with Q; Q with R etc.) to a small amount of water in a test tube. They give the following results as shown in the observation table. Observation Table:Which of the following reaction is incorrect:a)Phenolphthalein + NaCl →Acidic medium (Blue colour)b)Phenolphthalein + CaCO3 (R) → Alkaline medium (Dark Pink Colour)c)Phenolphthalein (P) + NaCl (Q) → No reactiond)CaCO3 (R) + 2CH3COOH (S) → (CH3COO)2Ca + CO2 (effervescence) + 2H2OCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 10 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for P, Q, R are different colourless solids, while S is a colourless solution. They are (in random order) Sodium chloride (NaCl), Calcium Carbonate (CaCO3), Acetic acid (CH3COOH) and Phenolphthalein indicator. Small amount of the above substances were added in pairs (e.g. P with Q; Q with R etc.) to a small amount of water in a test tube. They give the following results as shown in the observation table. Observation Table:Which of the following reaction is incorrect:a)Phenolphthalein + NaCl →Acidic medium (Blue colour)b)Phenolphthalein + CaCO3 (R) → Alkaline medium (Dark Pink Colour)c)Phenolphthalein (P) + NaCl (Q) → No reactiond)CaCO3 (R) + 2CH3COOH (S) → (CH3COO)2Ca + CO2 (effervescence) + 2H2OCorrect answer is option 'A'. Can you explain this answer?.
Solutions for P, Q, R are different colourless solids, while S is a colourless solution. They are (in random order) Sodium chloride (NaCl), Calcium Carbonate (CaCO3), Acetic acid (CH3COOH) and Phenolphthalein indicator. Small amount of the above substances were added in pairs (e.g. P with Q; Q with R etc.) to a small amount of water in a test tube. They give the following results as shown in the observation table. Observation Table:Which of the following reaction is incorrect:a)Phenolphthalein + NaCl →Acidic medium (Blue colour)b)Phenolphthalein + CaCO3 (R) → Alkaline medium (Dark Pink Colour)c)Phenolphthalein (P) + NaCl (Q) → No reactiond)CaCO3 (R) + 2CH3COOH (S) → (CH3COO)2Ca + CO2 (effervescence) + 2H2OCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 10. Download more important topics, notes, lectures and mock test series for Class 10 Exam by signing up for free.
Here you can find the meaning of P, Q, R are different colourless solids, while S is a colourless solution. They are (in random order) Sodium chloride (NaCl), Calcium Carbonate (CaCO3), Acetic acid (CH3COOH) and Phenolphthalein indicator. Small amount of the above substances were added in pairs (e.g. P with Q; Q with R etc.) to a small amount of water in a test tube. They give the following results as shown in the observation table. Observation Table:Which of the following reaction is incorrect:a)Phenolphthalein + NaCl →Acidic medium (Blue colour)b)Phenolphthalein + CaCO3 (R) → Alkaline medium (Dark Pink Colour)c)Phenolphthalein (P) + NaCl (Q) → No reactiond)CaCO3 (R) + 2CH3COOH (S) → (CH3COO)2Ca + CO2 (effervescence) + 2H2OCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of P, Q, R are different colourless solids, while S is a colourless solution. They are (in random order) Sodium chloride (NaCl), Calcium Carbonate (CaCO3), Acetic acid (CH3COOH) and Phenolphthalein indicator. Small amount of the above substances were added in pairs (e.g. P with Q; Q with R etc.) to a small amount of water in a test tube. They give the following results as shown in the observation table. Observation Table:Which of the following reaction is incorrect:a)Phenolphthalein + NaCl →Acidic medium (Blue colour)b)Phenolphthalein + CaCO3 (R) → Alkaline medium (Dark Pink Colour)c)Phenolphthalein (P) + NaCl (Q) → No reactiond)CaCO3 (R) + 2CH3COOH (S) → (CH3COO)2Ca + CO2 (effervescence) + 2H2OCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for P, Q, R are different colourless solids, while S is a colourless solution. They are (in random order) Sodium chloride (NaCl), Calcium Carbonate (CaCO3), Acetic acid (CH3COOH) and Phenolphthalein indicator. Small amount of the above substances were added in pairs (e.g. P with Q; Q with R etc.) to a small amount of water in a test tube. They give the following results as shown in the observation table. Observation Table:Which of the following reaction is incorrect:a)Phenolphthalein + NaCl →Acidic medium (Blue colour)b)Phenolphthalein + CaCO3 (R) → Alkaline medium (Dark Pink Colour)c)Phenolphthalein (P) + NaCl (Q) → No reactiond)CaCO3 (R) + 2CH3COOH (S) → (CH3COO)2Ca + CO2 (effervescence) + 2H2OCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of P, Q, R are different colourless solids, while S is a colourless solution. They are (in random order) Sodium chloride (NaCl), Calcium Carbonate (CaCO3), Acetic acid (CH3COOH) and Phenolphthalein indicator. Small amount of the above substances were added in pairs (e.g. P with Q; Q with R etc.) to a small amount of water in a test tube. They give the following results as shown in the observation table. Observation Table:Which of the following reaction is incorrect:a)Phenolphthalein + NaCl →Acidic medium (Blue colour)b)Phenolphthalein + CaCO3 (R) → Alkaline medium (Dark Pink Colour)c)Phenolphthalein (P) + NaCl (Q) → No reactiond)CaCO3 (R) + 2CH3COOH (S) → (CH3COO)2Ca + CO2 (effervescence) + 2H2OCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an ample number of questions to practice P, Q, R are different colourless solids, while S is a colourless solution. They are (in random order) Sodium chloride (NaCl), Calcium Carbonate (CaCO3), Acetic acid (CH3COOH) and Phenolphthalein indicator. Small amount of the above substances were added in pairs (e.g. P with Q; Q with R etc.) to a small amount of water in a test tube. They give the following results as shown in the observation table. Observation Table:Which of the following reaction is incorrect:a)Phenolphthalein + NaCl →Acidic medium (Blue colour)b)Phenolphthalein + CaCO3 (R) → Alkaline medium (Dark Pink Colour)c)Phenolphthalein (P) + NaCl (Q) → No reactiond)CaCO3 (R) + 2CH3COOH (S) → (CH3COO)2Ca + CO2 (effervescence) + 2H2OCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Class 10 tests.
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