Engineering Chemistry important questionsMost repeated in SPPU papers
These 75 questions appeared in more than one SPPU Engineering Chemistry paper we have: 12 papers, from Oct 2023 to Nov 2025. The most-asked come first. Each one links to the papers it was asked in.
Repeated questions
Endsem questions (68)
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The following observations were noted in Boy’s gas calorimeter experiment- Volume of gas burnt at STP = 0.1 m 3 , Mass of cooling water used = 27kg, Temperature of inlet & outlet water are 24ºC & 29ºC respectively. Mass of steam condensed = 0.04kg Find GCV and NCV of the fuel
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In conductometric titration between strong acid and strong base reaction, the conductance of the solution ______ i) decreases upto endpoint & then increases ii) increases upto endpoint & then decreases iii) increases upto endpoint & then remains constant iv) decreases upto end point & then remains constant
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1.2 gm of coal sample was heated in silica crucible in an electric oven at 110°C for 1 hr. The residue weighed 1.16 gm. The crucible was ignited to a constant weight of 0.09 gm. In another experiment 1.2 gm of sample was heated in a silica crucible covered with vented lid of 950°C for 7 min. After cooling the residue weighted 0.80 gm. Calculate % m, % VM and % Ash content.
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Insem questions (7)
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Questions count as repeated when their wording matches closely across papers. Numericals that depend on a figure are left out, since the figure changes from paper to paper.