Download App

STD 12 - p -Block elements - ll — NEET STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceNEETSTD 12 - p -Block elements - ll4 Marks
MCQ
Which is formed when fluorine react with hot and concentrated sodium hydroxide
  • ✓
    ${O_2}$
  • B
    ${O_3}$
  • C
    $NaO$
  • D
    $HF$
✓

Answer

Correct option: A.
${O_2}$
a
(a) $2{F_2} + 4NaOH \to 4NaF + 2{H_2}O + {O_2}$

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

NEET STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Elevation in boiling point for $1.5$ molal solution of glucose in water is $4 \,K$. The depression in freezing point for $4.5$ molal solution of glucose in water is $4\, K$ The ratio of molal elevation constant to molal depression constant $\left( K _{ b } / K _{ f }\right)$ is $....$
→
The experimental molecular weight of an electrolyte will always be less than its calculated value because the value of Van't Hoff factor  $“i” $ is
→
The relation between $\Delta G$ and $E$ for a cell is $\Delta G = - nFE$; the cell reaction will be spontaneous if
→
When a strong acid, strong base or their salt are dissolved in water, they are completely ionised. If a strong acid is added to a strong base, ${H^ + }$ ions from the former combine with $O{H^ - }$ ions of the latter forming water. The formation of each water molecule liberates a certain quantity of energy and the reaction is exothermic. The heat liberated when one mole of water is formed by combining hydrochloric acid and sodium hydroxide is $ 13.7 \,kcal$. The heat liberated when one mole of water is formed by combining sulphuric acid and sodium hydroxide is......$kcal$
→
Dissociation constant for a monobasic acid is $10^{-4}$ . What is the $pH$ of the monobasic acid ? (If $\%$ dissociation $= 2\,\%$ )
→
During the qualitative analysis of salt with cation $y ^{2+}$, addition of a reagent $( X )$ to alkaline solution of the salt gives a bright red precipitate. The reagent $( X )$ and the cation $\left( y ^{2+}\right)$ present respectively are .... .
→
The correct geometry and hybridization for $XeF_4$ are
→
A subshell with $l = 2$ is called?
→
Which of the following is most reactive for nucleophilic substitution reaction ?
→
Which of the following is electrophilic in nature ?
→