Directions : In the following question more than one of the answers given may be correct. Select the correct answer and mark it according to the code:
Which elements can detect by flame test? (1) \[Na\] (2) \[Ca\] (3) \[Ba\] (4) \[Be\]A) 1, 2 and 3 are correct
B) 1 and 2 are correct
C) 2 and 4 are correct
D) 1 and 3 are correct
Correct Answer: A
Solution :
\[Na,Ca\]and Ba can detect by flame test. Be does not give flame test. Element Colour Na golden yellow Ca brick red Ba green
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