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MCQs4All - Chemistry MCQs for NTS, FPSC, CSS, IELTS, TOEFL

Question. Nitration of chlorobenzene gives___________________?
  1. o – chloronitrobenzene
  2. p – chloronitrobenzene
  3. m – chloronitrobenzene
  4. A & B
Question. Linds method is employed for__________________?
  1. Separation of gases
  2. Expansion of gases
  3. Compression of gases
  4. Liquefaction of gases
Question. Splitting of spectral lines when atom is subjected to magnetic field is called _______________?
  1. Zeemans effect
  2. Starks effect
  3. Photo electric effect
  4. Compton effect
Question. The gases become non-ideal at ________________?
  1. High temperature and high pressure
  2. Low temperature and low pressure
  3. High temperature and low pressure
  4. Low temperature and high pressure
Question. The nitrogenous base different in RNA as compared to DNA is_________________?
  1. Cytosine
  2. Thymine
  3. Adenine
  4. Guanine
Question. Carboxylic acid on reduction with HI / phosphorous yields_________________?
  1. alkane
  2. alcohols
  3. aldehydes
  4. ketones

Chemistry MCQs for NTS, FPSC, CSS, PPSC, PMS, UTS, FTS, OTS, Teaching, CT, PTC, SST, B.Ed, M.Ed of past papers
Question. Molecular mass of water (18g) means__________________?
  1. 1-mole molecules of water
  2. 1-gram molecule of water
  3. 3-gram atoms
  4. all
Question. Fluorine can react with_________________?
  1. Xe
  2. Kr
  3. Rn
  4. All of the above
Question. Atom with higher atomic number produces X-rays of__________________?
  1. Shorter wavelength
  2. Larger wavelength
  3. X-ray not produced
  4. All are possible
Question. A solution has pH = 0 its H+ ion concentration is__________________?
  1. 1 x 10-1
  2. 1 x 10-14
  3. 1 x 10-7
  4. 1
Question. Enzyme proved useful in cancer treatment is_______________?
  1. Lactic dehydrogenase
  2. Alkaline phosphatase
  3. L-asparaginase
  4. Cellulase
Question. The halogen having highest electron affinity is_____________________?
  1. Fluorine
  2. Chlorine
  3. Bromine
  4. Iodine
Question. The organic acid that can be made from ethanol is_________________?
  1. Acetic acid
  2. Formic acid
  3. Butanoic acid
  4. Citric acid
Important MCQs
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Question: The first Nobel Prize was awarded in __________ .
Question: German nuclear physicist, Johannes Hans Danniel Jensen, died in
Question: The Arch of Janus is situated in_________?
Question: An instrument to detect the purity of milk is____________?
Question: Headquarter of Pakistan NAVY is in ?
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Question: The outermost layer of the Earth is
Question: Temperature of inner core of Earth can rise up to
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