1
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of following methods is used to separate wolframite and stannic oxide present in cassiterite?

A
Hydraulic washing using Wilfley table
B
Froth flotation
C
Hydraulic classifier
D
Magnetic separation
2
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

$$\begin{aligned} & \text { In the reaction, } \\ & \mathrm{MnO}_4^{-1}(a q)+\mathrm{Br}^{-1}(a q) \longrightarrow \mathrm{MnO}_2(s)+\mathrm{BrO}_3^{-1}(a q) \end{aligned}$$

,the correct change in oxidation number of the species involved is

A
$\mathrm{Br}^{+5}$ to $\mathrm{Br}^{-1}$
B
$\mathrm{Mn}^{+7}$ to $\mathrm{Mn}^{+2}$
C
$\mathrm{Mn}^{+7}$ to $\mathrm{Mn}^{+3}$
D
$\mathrm{Br}^{-1}$ to $\mathrm{Br}^{+5}$
3
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

How many isoprene units are present in abscisic acid?

A
Three
B
Two
C
Four
D
Five
4
MHT CET 2019 2nd May Morning Shift
MCQ (Single Correct Answer)
+1
-0

Action of hydrogen iodide on anisole gives,

A
phenol and iodomethane
B
iodobenzene and methanol
C
phenol and methanol
D
iodobenzene and iodomethane
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