MCQ
Helium was discovered by
- ACrooks
- BRutherford
- ✓Frankland and Lockyer
- DDorn
✓
Answer
Correct option: C.
Frankland and Lockyer
c
(c)Helium (In Greek Helios = Sun)
(c)Helium (In Greek Helios = Sun)
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Products $A$ and $B$ formed in the following reactions are respectively
→$[Figure]$ $\longrightarrow \,\,A\,\xrightarrow{{{C_6}{H_5}N{H_2}}}B$
Which of the following is non reducing Disaccharide sugar ?
Which one of the following gives the most stable Diazonium salt?
The major product $Z$ obtained in the following reaction scheme is
→$5\,c{m^3}$ of acetone is added to $100\,c{m^3}$ of water, the vapour pressure of water over the solution
→Given below are two statements:
→Statement $I$ : Acidity of $\alpha$-hydrogens of aldehydes and ketones is responsible for Aldol reaction.
Statement $II$ : Reaction between benzaldehyde and ethanal will $NOT$ give Cross - Aldol product. In the light of above statements, choose the most appropriate answer from the options given below.
Which of the following compounds is sparingly soluble in ammonia
Which of the following is a not cyclic oxyacid?
Glycerol reacts with ${P_4} + {I_2}$ to form
→ Which of the following optioms correctly represents relationship between $t_{7/8}$ and $t_{1/2}$ where $t_{7/8}$ represent time required for concentration to become $\frac{1}{8} \,th$ of original for a reaction of order $'n'$
→