MHT CET · Chemistry · Classification of Elements and Periodicity in Properties
Which from following elements is NOT radioactive?
- A \(\mathrm{At}\)
- B \(\mathrm{Po}\)
- C \(\mathrm{Rn}\)
- D \(\mathrm{Ar}\)
Answer & Solution
Correct Answer
(D) \(\mathrm{Ar}\)
Step-by-step Solution
Detailed explanation
\(\begin{array}{|l|l|l|} \hline Std.12 & Ch-7 & Multifarious \\ \hline \end{array}\)
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Chemistry
- What is the general molecular formula of the products obtained on heating lanthanoids (Ln) with sulphur?MHT CET 2016 Medium
- What is the quantity of sugar charcoal remaining behind after charring 17.1 g sugar using conc. \(\mathrm{H}_2 \mathrm{SO}_4\) under ideal conditions?MHT CET 2022 Easy
- The resistance of a conductivity cell of 0.1 M KCl solution is 120 ohm and conductivity is \(1.64 \times 10^{-4} \mathrm{~S} \mathrm{~cm}^{-1}\). What is the value of cell constant?MHT CET 2024 Easy
- Identify Finkelstein reaction from the following.MHT CET 2022 Easy
- Which from following is a soft metal?MHT CET 2025 Easy
- Identify correct composition of water gas from following.MHT CET 2021 Easy
More PYQs from MHT CET
- In an isobaric process of an ideal gas, the ratio of work done by the system (W) during the expansion and the heat exchanged \((\mathrm{Q})\) is \(\left(\gamma=\frac{C_p}{C_v}\right)\)MHT CET 2024 Medium
- A plane is parallel to two lines direction ratios are \((1,0,-1)\) and \((-1,1,0)\) and it contains the point \((1,1,1)\). If it cuts the co-ordinate axes at A, B, C, then the volume of the tetrahedron \(\mathrm{OABC}\) is cu. units.MHT CET 2022 Easy
- What is the self inductance of a coil in which an induced emf of \(2 \mathrm{~V}\) is set up, when the current is changing at the rate of \(4 \mathrm{As}^{-1}\)MHT CET 2012 Medium
- The set of all points, for which \(\mathrm{f}(x)=x^2 \mathrm{e}^{-\dot{x}}\) strictly increases, isMHT CET 2024 Medium
- In DNA fingerprinting technique,__________ probe is used for hybridization of DNA fragments.MHT CET 2014 Hard
- Let \(a\) and \(b\) two non-zero real numbers. The equation
\(\left(a x^2+b y^2+c\right)\left(x^2-5 x y+6 y^2\right)\)
Four straight lines, when \(c=0\) and \(a, b\) are of the same sign.MHT CET 2022 Easy