Chemistry · 2019
JEE Main · 10 January 2019, Shift 1 · Q45
The metal used for making X-ray tube window is:
The metal used for making X-ray tube window is :
Official answer
(4)
Be
More from s-Block Elements
- Reaction of BeCl_2 with LiAlH_4 gives: AlCl_3 BeH_2 LiH LiCl (E) BeAlH_4 Choose the correct answer from options given below:2022
- Mg(NO_3)_2 · XH_2 O and Ba(NO_3)_2 · YH_2 O, represent formula of the crystalline forms of nitrate salts. Sum of X and Y is ____2023
- Ion having highest hydration enthalpy among the given alkaline earth metal ions is:2023
- For a good quality cement, the ratio of lime to the total of the oxides of Si, Al and Fe should be as close as to2023
- Given below are two statements: one is labelled as Assertion and the other is labelled as Reason (R). Assertion: Lithium salts are hydrated. Reason…2021
- Match List I with List II: Choose the correct answer from the options given below:2021
- Given below are two statements: Statement-I: The chlorides of both beryllium and aluminium have structures in which chlorobridges are present in…2021
- Magnesium powder burns in air to give:2019
JEE Main 2019 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.