MCQ
Which of the following is CORRECT about alkynes?
- AAlkynes undergo substitution reaction.
- ✓Alkynes are less dense than water.
- CAlkynes are soluble in water.
- DThe alkynes are aliphatic saturated hydrocarbons.
✓
Answer
Correct option: B.
Alkynes are less dense than water.
B
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
A particle is performing vertical circular motion. The difference in tension at lowest and highest point is ______.
Polonium belongs to ____________.
Match the columns and select the correct option.
| Column I | Column II | ||
| i. | Starch | a. | Animal storage molecule |
| ii. | Cellulose | b. | Plant storage molecule |
| iii. | Glycogen | c. | Heparin |
| iv. | Heteropolysaccharide | d. | Plant cell wall component |
In the given structure of an antibody molecule, identify the label 'X'.
Identify the distal narrow part of the duct opening into the uterus.
Complete the analogy with respect to Gross Calorific Value.
Fats: 9.45 :: Carbohydrates : ______
If the volume of the tetrahedron formed by the coterminous edges `bar"a", bar"b" and bar"c"` is 5, then the volume of the parallelopiped formed by the coterminous edges `bar"a" xx bar"b", bar"b" xx bar"c" and bar"c" xx bar"a"` is
`sqrt3 sin15^circ + cos15^circ` = ______
In a transistor, a change of 8.0 mA in the emitter current produces a change of 7.8 mA in the collector current. Then change in the base current is ____________.
The critical angle is maximum when light travels from ______.
`(a^mu"w"=4/3,a^mug=3/2)`