WBJEE · Chemistry · d and f Block Elements
Platinum, Palladium and Iridium are called noble metals because
- A Alfred Nobel discovered them
- B They are shining lustrous and pleasing to look at
- C They are found in native state
- D They are inert towards many common reagents.
Answer & Solution
Correct Answer
(D) They are inert towards many common reagents.
Step-by-step Solution
Detailed explanation
Hints: Fact
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
- Oxidation states of \(\mathrm{Cr}\) in \(\mathrm{K}_2 \mathrm{Cr}_2 \mathrm{O}_7\) and \(\mathrm{CrO}_5\) are, respectivelyWBJEE 2022 Easy
- The solubility of \(\mathrm{Ca}_3\left(\mathrm{PO}_4\right)_2\) in water is y moles / litre. Its solubility product isWBJEE 2011 Medium
- The ozone layer forms naturally byWBJEE 2011 Easy
- The energy of an electron in first Bohr orbit of \(\mathrm{H}\)-atom is \(-13.6 \mathrm{eV}\). The possible energy value of electron in the excited state of \(\mathrm{Li}^{2+}\) isWBJEE 2011 Medium
- Which of the following is present in maximum amount in 'acid rain'?WBJEE 2018 Easy
- A plot of In \(\mathrm{k}\) against \(\frac{1}{\mathrm{~T}}\) (abscissa) is expected to be a straight line with intercept on ordinate axis equal toWBJEE 2011 Medium
More PYQs from WBJEE
- Let \(I\) denote the \(3 \times 3\) identity matrix and \(P\) be a matrix obtained by rearranging the columns of
\(I\). Then,WBJEE 2014 Medium - The equation of a progressive wave is \(y=4 \sin (4 \pi t-0.04 x+\pi / 3)\) where \(x\) is in meter and \(t\) is in second. The velocity of the wave isWBJEE 2010 Easy
- Let \(A\) be a square matrix of order 3 whose all entries are 1 and let \(I_{3}\) be the identity matrix of order \(3 .\) Then, the matrix \(A-3 I_{3}\) isWBJEE 2019 Easy
- A golf ball of mass \(50 \mathrm{gm}\) placed on a tee, is struck by a golf-club. The speed of the golf ball as it leaves the tee is \(100 \mathrm{~m} / \mathrm{s}\), the time of contact on the ball is \(0.02 \mathrm{~s}\). If the force decreases to zero linearly with time, then the force at the beginning of the contact isWBJEE 2022 Medium
- In a Frounhofer diffraction experiment, a single slit of width \(0.5 \mathrm{~mm}\) is illuminated by a monochromatic light of wavelength \(600 \mathrm{~nm}\). The diffraction pattern is observed on a screen at a distance of \(50 \mathrm{~cm}\) from the slit. What will be the linear separation of the first order minima?WBJEE 2020 Medium
- \(\mathrm{Cl}_{2} \mathrm{O}_{7}\) is the anhydride ofWBJEE 2018 Easy