1
MHT CET 2026 15th April Evening Shift
MCQ (Single Correct Answer)
+1
-0
Which of the following is the most abundant element in universe?
A
$\text{H}$
B
$\text{O}$
C
$\text{Ne}$
D
$\text{C}$
2
MHT CET 2026 13th April Evening Shift
MCQ (Single Correct Answer)
+1
-0
Which of the following ions are responsible for hardness of water?
A
$\text{Ag}^+, \text{Au}^{3+}$ ions
B
$\text{Hg}^{2+}, \text{Pb}^{2+}$ ions
C
$\text{Ca}^{2+}$ and $\text{Mg}^{2+}$ ions.
D
$\text{As}^{3+}, \text{CN}^-$
3
MHT CET 2025 25th April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which of the following is used in preparation of hydrogen peroxide by Merck process?

A
$\quad \mathrm{CaCO}_{3(\mathrm{~s})}$
B
$\mathrm{BaO}_2 \cdot 8 \mathrm{H}_2 \mathrm{O}$
C
$\quad \mathrm{CaCl}_{2(\mathrm{~s})}$
D
$\quad \mathrm{Na}_2 \mathrm{O}_{2(\mathrm{aq})}$
4
MHT CET 2025 20th April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Identify the correct decreasing order of boiling point for hydrides of halogens.

A
$\mathrm{HF}>\mathrm{HCl}>\mathrm{HBr}>\mathrm{HI}$
B
$\mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}>\mathrm{HF}$
C
$\mathrm{HF}>\mathrm{HI}>\mathrm{HBr}>\mathrm{HCl}$
D
$\mathrm{HI}>\mathrm{HF}>\mathrm{HBr}>\mathrm{HCl}$

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