MCQs4All - Chemistry Collection

Chemistry MCQs for NTS, FPSC, CSS, PPSC, PMS, UTS, FTS, OTS, Teaching, CT, PTC, SST, B.Ed, M.Ed of past papers

Question. Which of the following does not contain phosphorus ?
  1. Yolk of egg
  2. Bone
  3. Nerves
  4. Steel
Question. Phosphorous acid upon thermal decomposition yields phosphoric acid and____________________?
  1. Phosphine
  2. Phosphorus
  3. Water
  4. Phosphorus pentoxide
Question. Which of the following technique is used for the separation of insoluble particles from liquids ?
  1. Filtration
  2. Crystallization
  3. Solvent extraction
  4. Chromatography
Question. The percentage of nitrogen in urea is________________?
  1. 36%
  2. 46%
  3. 56%
  4. 66%
Question. Elements with similar chemical properties appear in the_________________?
  1. Same family
  2. Same period
  3. p block elements
  4. Right upper corner
Question. The relationship between energy of a photon of light and its frequency is given by________________?
  1. de-Broglie duel nature of matter
  2. Bohrs model
  3. Plancks Quantum theory
  4. Rutherfords atomic model
Question. Which one of following amino acid is neither acidic nor a basic in nature ?
  1. Lysine
  2. Histidine
  3. Proline
  4. Glutamic acid
Question. In unsaturated hydrocarbons electrons favour___________________?
  1. less reactivity
  2. addition reactions
  3. substitution reactions
  4. none
Question. Elements having high I.P values are____________________?
  1. Metals
  2. Non metals
  3. Liquids
  4. Solids
Question. Quantum number which tells the energy of electron is________________?
  1. n
  2. 1
  3. m
  4. s
Question. Newspaper can be recycled again and again how many times ?
  1. 2
  2. 3
  3. 4
  4. 5
Question. Which of the solid does not contain covalent bond________________?
  1. Copper
  2. Ice
  3. Diamond
  4. Graphite
Question. Water has maximum density at __________________?
  1. 0°C
  2. 2°C
  3. 4°C
  4. 100°C