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Wednesday, 12 February 2020

General Science: Questions and Answers (Chapter: 22)

General Science: Questions and Answers 
(Chapter: 22)

691. Which element is used to coat the photocopying drum of Xerox machine? 
Selenium 

692.  Which acid is present in colas? 
Phosphoric Acid 

693. Which optical filter glass allows ultraviolet & infrared light to pass through while blocking most visible light? 
Wood's Glass

694. Which is the only gem of the world made of a single element? 
Diamond

695. Name the volcanic rock best known for sometimes contain¬ing diamonds? 
Kimberlite

696. Which chemical is used to draw & write in the glasses?
Hydrofluoric Acid 

697. Which chemical was histori¬cally known as 'white vitriol & goslarite'?
Zinc Sulphate 

698. Which metal is commercially produced through the FFC Cambridge Process?
Titanium 

699. Which metal is extracted via the Kroll Process or the Hunter Process? 
Titanium 

700. The substance which is a chemical compound that tends to shrink or constrict body tissues, usually after the topical medicinal application is known as? 
Astringent

701. Which Indian mathematician is called as 'the Euclid of India'? 
Bhaskaracharya

702. Which thermoplastic polymer is used in a wide variety of applications including packaging, labelling, station¬ery, loudspeakers & polymer banknotes? 
Polypropylene

703. Which gas is mostly used in gas welding?
Acetylene 

704. Which country mostly rely on nuclear power with 78 per cent of total energy production from nuclear electricity?
France 

705. Which compound of Titanium is used in the manufacture of white pigments?
Titanium dioxide 

706. Which country leads in the production of Platinum? 
South Africa

707. Which metal is known as 'Little Silver'?
Platinum 

708. Which element is named for the Earth? 
Tellurium

709. Which compound of Selenium is used as an anti-dandruff agent in shampoos? 
Selenium disulfide

710. Which add is capable of dissolving gold?
Selenic acid 

711. The compounds of which element confer red colour to glass? 
Selenium 

712. Which element inhibit Hashimoto's disease which affects thyroid cells?
Selenium 

713. What is known as 'Poisoner's Poison'? 
Thallium 

714. Which metal is also known as Wolfram? 
Tungsten 

715. among labourers during the construction of the Panama Canal? 
Yellow fever

716. What is the optimum range of temperature for the proper work of enzymes?
35-40 degree Celsius 

717. 2, 4- D, atrazine & glyphosate are examples of. 
Herbicides (weed killers)

718.  According to Botanical Survey of India, which state accounts for the highest number of flowering plants in the country?
TamilNadu 

719. The plants which flower only once in their lifetime are called. 
Monocarpic

720. Ageing in human beings is caused by the disappearance of which gland?
Thymus gland 

721. The process involved in the passage of food in the alimentary canal is. 
Peristalsis

722. Which organs are affected by the disease malaria?
Spleen & liver 

723. The disorder of which organ is detected through the treadmill test? 
Heart

724. The Bowman's capsule is associated with which organ?
Kidneys 

725. Which diseases are prevented through Tripple vaccine? 
Whooping cough, Tetanus & Diphtheria

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