Which of the following is the weakest bond
Options
(a) Hydrogen bond (b) Metallic bond (c) Ionic bond (d) Covalent bond
Correct Answer:
Hydrogen bond
Explanation:
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The presence of colloidal particles can be confirmed with the help of
Options
(a) naked eye (b) ordinary microscope (c) ultramicroscope (d) none of these
Correct Answer:
ultramicroscope
Explanation:
No explanation available. Be […]
Which of the following prevents food from going to trachea?
Options
(a) glottis (b) pharynx (c) epiglottis (d) bronchi
Correct Answer:
epiglottis
Explanation:
No explanation available. Be the first to write the explanation […]
Nucleus was discovered by
Options
(a) Robert Hooke (b) Robert Brown (c) Schleidan (d) Virchow
Correct Answer:
Robert Brown
Explanation:
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Citric acid cycle is also called
Options
(a) Kreb’s cycle (b) TCA cycle (c) tricarboxylic acid cycle (d) Kreb’s cycle & TCA cycle & tricarboxylic acid cycle
Correct Answer:
Kreb’s cycle & TCA […]
Devine and Collego are two trade names in agriculture. They are used as
Options
(a) bioinsecticides (b) natural insecticides (c) biofungicides (d) bioherbicides
Correct Answer:
bioherbicides
Explanation:
No explanation available. Be the first […]
All cells contain
Options
(a) mitochondria and nucleus (b) Golgi bodies (c) chloroplast (d) ribosomes
Correct Answer:
ribosomes
Explanation:
No explanation available. Be the first to write the explanation for this question by […]
3-Pentanol upon reaction with PBr₃ gives 2 and 3-bromopentane.Such rearrangements can be avoided by
Options
(a) using excess of PBr₃ (b) choosing low temperature for reaction (c) converting alcohol into sulphuric or sulfonic […]
The horizontal range of a projectile is 4√3 times the maximum height achieved by it. The angle of projection is
Options
(a) 30⁰ (b) 45⁰ (c) 60⁰ (d) 90⁰
Correct Answer:
30⁰
Explanation:
u²sin […]
Which of the following is an emulsion
Options
(a) Milk (b) White of an egg (c) cheese (d) Soap solution
Correct Answer:
Milk
Explanation:
No explanation available. Be the first to write the […]
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