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Wednesday, 12 February 2020

General Science: Questions and Answers (Chapter: 23)

General Science: Questions and Answers 
(Chapter: 23)

726. A person suffering from colour blindness cannot distinguish which colours?
Red& green 

727. Which is the chief nitrogenous waste in humans?
Uric acid 

728. Who is known as 'the father of cloning'?
Ian Wilmut 

729. Which hormone promotes blood circulation? 
Adrenalin

730. Which rays are used to detect the smuggling of precious metals?
X-rays 

731. Which metal is extracted through the Mond's process?
Nickel 

732. What is the wavelength of visible light? 
3900 to 7600 Angstrom

733. Which metal is used in the catalytic converters in cars to reduce the pollution from exhaust gases? 
platinum

734. What are the common examples of the monoatomic elements?
Inert gases (Helium, Argon, Neon) 

735. Bessemer process is associated with the production of. 
Steel

736. Which Indian born American physicist is known as 'the Father of Fiber Optics'?
Narinder Singh Kapany 

737. Which kind of cells in the human blood has the longest life span? 
Erythrocyte

738. Who was the first scientist to decode the language of bees?
Karl von Frisch 

739. Tamiflu is a frontline drug against which disease?
Bird Flu 

740. Which genetic disease is mostly associated with the Royal families?
Haemophilia 

741. Which is the example of roots that contain chlorophyll capable of photosynthesis?
Assimilatory roots 

742. Which plant hormone is useful in the formation of roots? 
Cytokinins

743. Spermology is the study of. 
Seeds

744. Which is the first phase of mitotic division?
Pro phase 

745. Which period in the history of Earth is known as 'the Age of Reptiles'? 
Mesozoic Era

746. Cactus is a modified form of. 
Stem

747. The total kinetic energy of molecules in a substance is known as.
Heat 

748. Which is the only anthropoid ape found in India'? 
Hoolock Gibbon

749. The property of some substances to absorb light of one wavelength and emit light of a longer wavelength is known as.
Fluorescence 

750. What is the other name of hydrated aluminium oxide?
Bauxite 

751. Which is the largest lymphatic gland in the human body? 
Spleen

752. Which disease is caused by Treponema palladium? 
Syphilis

753. Which plant tissues are mainly responsible for food storage & conduction of substances?
Parenchyma 

754. Periplaneta Americana is the scientific name of. 
Cockroach

755. Which microorganism is also known as 'slipper animalcule'?
Paramecium 

756. The hard parts of the plant body are made up of which tissues? 
Sderenchyma

757. Who coined the word 'Gene'? 
Johanson

758. Which is the smallest unit of computer memory? 
Bit

759. Which is the sixth form of matter? 
Fermionic condensate 

760. Which instrument is used in the submarines to view the surface of the water? 
Periscope 

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