1
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

A polymer which becomes soft on heating and hard on cooling, belongs to class of

A
fibers
B
thermosetting polymer
C
elastomer
D
thermoplastic polymer
2
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

The effective atomic number of $\operatorname{Iron}(z=26)$ in $\left[\mathrm{Fe}(\mathrm{CN})_6\right]^{-3}$ is

A
36
B
33
C
35
D
34
3
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which bond in a molecule of ethyl magnesium bromide is ionic in nature?

A
$\mathrm{C}-\mathrm{C}$ bond
B
$\mathrm{C}-\mathrm{Mg}$ bond
C
$\mathrm{Mg}-\mathrm{Br}$ bond
D
$\mathrm{C}-\mathrm{H}$ bond
4
MHT CET 2019 3rd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Based on first law of thermodynamics which of the following is correct

A
for an isobaric process, $q_p=\Delta U+w$
B
for an adiabatic process, $\Delta U=-w$
C
for an isochoric process, $\Delta U=-q_v$
D
for an isothermal process, $q=+w$
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