LIST I Elements | LIST II Colour imparted to the flame | ||
A | K | 1 | Brick Red |
B | Ca | 2 | Violet |
C | Sr | 3 | Apple Green |
D | Ba | 4 | Crimson Red |
Correct answer is (d) A-II, B-I, C-IV, D-III
The flame test is used to identify elements based on the characteristic colors they emit when heated. The correct matching is:
Thus, the correct matching corresponds to option (4).
Given below are two statements.
In the light of the above statements, choose the correct answer from the options given below:
Let $ P_n = \alpha^n + \beta^n $, $ n \in \mathbb{N} $. If $ P_{10} = 123,\ P_9 = 76,\ P_8 = 47 $ and $ P_1 = 1 $, then the quadratic equation having roots $ \alpha $ and $ \frac{1}{\beta} $ is: