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Q94 (NDA-I/2009) Science & Technology › Basic Science (Physics, Chemistry, Biology) › Applied everyday chemistry Answer Verified

Match List I with List II and select the correct answer using the code given below the lists: List I (Substance) A. Glass B. Soap C. Paper D. Cement List II (Raw Material) 1. Fat and caustic alkali 2. Cellulose fibre and gelatin 3. Sili cates of calcium and aluminium 4. Silica Code: A B C D

Result
Your answer: —  Â·  Correct: D
Explanation

The matching of substances to their primary raw materials is as follows: Glass (A) is primarily composed of silica (4), which is the main glass-forming oxide [t5][t7]. Soap (B) is produced through saponification, a process where fats or oils (triglycerides) react with a caustic alkali (1) like sodium hydroxide or potassium hydroxide to form soap and glycerin [c3][t1][t3]. Paper (C) is manufactured from cellulose fibres (2) derived from wood, bamboo, or grasses, often using gelatin or other sizing agents to improve surface properties [c4]. Cement (D) consists of silicates of calcium and aluminium (3), formed by heating limestone and clay in a kiln to produce clinker, which is then ground into a fine powder [t4][t5]. Therefore, the correct sequence is A-4, B-1, C-2, D-3.

Sources

  1. [1] Science , class X (NCERT 2025 ed.) > Chapter 4: Carbon and its Compounds > CH COOH CH CH OH CH C C CH CH H O 3 3 2 3 2 3 2 Acid O (E - + - - - - - + thanoic acid) (Ethanol) (Ester) O > p. 73
  2. [2] https://ww2.jacksonms.gov/browse/b4re5R/271010/raw__materials_for__soap-making.pdf
  3. [3] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 11: Industries > PAPER INDUSTRY > p. 56
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SIMILAR QUESTIONS

NDA-II · 2008 · Q51 Relevance score: 5.96

Match List-I with List-II and select the correct answer using the code given below the lists: List-I (Substance added) A. Chromium (III) oxide B. Cobalt (II) oxide C. Cuprous oxide D. Manganese dioxide List-II (Colour imparted to glass) 1. Red 2. Violet 3. Green 4. Blue Codes: A B C D

NDA-II · 2012 · Q73 Relevance score: 5.93

Match List I (Compound) with List II (Use) and select the correct answser using the codes given below the lists. List I A. Cellulose nitrate B. Potassium sulphate C. Potassium salt of fatty adds D. Calcium oxide List II 1. Soft soap 2. Gun powder 3. Fertilizer 4. Glass Codes: ABCD ABCD

NDA-II · 2011 · Q33 Relevance score: 5.82

Match List I with list II and select the correct answer using the code given below the lists : List-I (Metallic oxide) A. Uranium oxide B. Cuprous oxide C. Cobalt oxide D. Chromium oxide List-II (Colour imparted to glass) 1. Red 2. Blue 3. Green 4. Yellow Code : A B C D

NDA-I · 2015 · Q13 Relevance score: 5.44

Match List I with List II and select the correct answer using the code given below the Lists: List I (Compound) A. Sodium hydroxide B. Calcium oxide C. Acetic acid D. Hydrochloric acid List II (Nature) 1. Strong acid 2. Alkali 3. Weak acid 4. Base Code: A B C D