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Wednesday, 12 February 2020

General Science: Questions and Answers (Chapter: 26)

General Science: Questions and Answers 
(Chapter: 26)

831. What is the chemical name of Ajinomoto? 
Monosodium Glutamate

832. What is known as 'the wonder child of electronics'?
Transistors 

833. Which acid is present in cola?
Phosphoric Acid 

834. Detergents are sodium or potassium salts of ----------------
Sulphonic acid

835. What is known as thiokol? 
Synthetic rubber

836. The colour of cow milk is slightly yellowish due to the presence of .
Carotin 

837. The poisoning of which heavy metal causes the Minamata disease? 
Mercury

838. Itai-Itai disease is caused by the poisoning of ----------------
Cadmium 

839. Nudes with same atomic number but a different mass number are called ------------------.
Isotopes

840. Which instrument is used to measure blood pressure?
Sphygmomanometer 

841. Who developed the free operating system of Linux? 
Linus Torvalds

842. Which is the most abundant metal in the Earth's crust?
Aluminium 

843. In what time the Sunlight reaches Earth?
500 seconds (8 minutes 20 seconds)

844. Which is known as Universal donor of all blood groups? 
Ogroup

845. Which element is present in all adds? 
Hydrogen

846. What is the function of kidneys in the human body?
To filter waste materials 

847. Who discovered color blindness?
John Dalton 

848. What is the best conductor of heat and electricity?
Silver 

849. What is the chemical content of laughing gas? 
Nitrous Oxide

850. Which acid is present in lemon? 
Citric Acid

851. Hypo, used in photography, is chemical? 
Sodium Thiosulphate

852. Which metal forms amalgams with other metals?
Mercury 

853. The Brown Ring test is used for the analysis of -------------
Nitrates

854. Which disease is also known as 'Christmas Disease'?
Haemophilia B 

855. Which instrument is used to measure the potential difference? 
Voltmeter

856. Which colour of light travels most slowly through glass?
Violet 

857. Which are the three primary colours used in colour TV?
Green, Blue, Red

858. Which element has the smallest atom?
Hydrogen

859. The atom of which element is devoid of neutron? 
Hydrogen

860. Which fuel produces maximum heat per gram burnt?
Hydrogen 

861. Which element has the maximum number of stable isotopes? 
Tin

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

863. Liquefied natural gas or LNG is natural gas is predominantly composed of ----------
methane

864. What turns blue litmus paper in to read? 
Acids

865. Red litmus paper turns blue under ----------- conditions?
Basic (Alkaline) 

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