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Chemistry Basics Questions for RRB GROUP D

Free, AI-curated practice for the Chemistry Basics section of RRB GROUP D. We have 15+ verified questions in this bank. Below: 5 sample questions. Sign up free to unlock unlimited practice + AI explanations + per-topic analytics.

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📍 Chemistry Basics is also tested in:
RRB NTPC (15)

Sample questions

Q1 · medium · AI-verified
What is the process of conversion of solid directly to gas called?
  1. Melting
  2. Evaporation
  3. Sublimation
  4. Condensation
Q2 · medium · AI-verified
What is the pH value of pure water at 25°C?
  1. 6
  2. 7
  3. 8
  4. 14
Q3 · medium · AI-verified
Which acid is present in vinegar?
  1. Citric acid
  2. Acetic acid
  3. Lactic acid
  4. Formic acid
Q4 · medium · AI-verified
Which gas is used in electric bulbs to prevent the filament from oxidizing?
  1. Oxygen
  2. Nitrogen
  3. Argon
  4. Carbon dioxide
Q5 · medium · AI-verified
What is the pH value of a neutral solution at 25°C?
  1. 7
  2. 1
  3. 0
  4. 14
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