1
MHT CET 2025 23rd April Evening Shift
MCQ (Single Correct Answer)
+1
-0

$$ \text { What is the number of node in } 2 \mathrm{~s} \text { orbital? } $$

A
0
B
1
C
2
D
3
2
MHT CET 2025 23rd April Morning Shift
MCQ (Single Correct Answer)
+1
-0

What is the numerical value of angular momentum for an electron in first orbit of hydrogen atom? ( $\mathrm{h}=6.626 \times 10^{-34} \mathrm{Js}$ )

A
$1.05 \times 10^{-34}$.
B
$2.10 \times 10^{-34}$
C
$3.16 \times 10^{-34}$
D
$4.22 \times 10^{-34}$
3
MHT CET 2025 22nd April Morning Shift
MCQ (Single Correct Answer)
+1
-0

Which from following is NOT hydrogen like species?

A
$\mathrm{Li}^{+2}$
B
$\mathrm{Be}^{+3}$
C
$\mathrm{Li}^{+}$
D
$\mathrm{He}^{+}$
4
MHT CET 2025 21st April Evening Shift
MCQ (Single Correct Answer)
+1
-0

Which from following statements is NOT true about isotopes?

A
These are the atoms of same elements.
B
They have same chemical properties.
C
They occupy same position in the modern periodic table.
D
They have equal number of neutrons.
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