Which of the following metals burn with brick red flame?<...
Which of the following metals burn with brick red flame?
Pb
Ca
Na
Mg
Correct answer is B
No explanation has been provided for this answer.
The maximum number of covalent formed by nitrogen is ...
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Figure 1 above shows part of the periodic Table which of the elements belongs to the p-block?...
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What weight of sodium hydroxide is required to make 500 cm3 of 0.2 M solution? (Na = 23, O = 16, ...
The appropriate test paper to use in the above experiment is moist ...
What is the IUPAC name of CH3CCI=C(CH3)2?...
The energy change (ΔH) for the reaction CO(g) + (1)/(2)O2(g) → is? (ΔHi(CO) = -110.4 kJ mol-)...
An organic compound containing 40.1% carbon and 6.6% hydrogen has an empirical formula of? ...