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Corona Virus paragraph ?
Corona Virus Paragraph in 100 WordsCoronavirus is an infectious disease and is commonly called Covid-19. It affects the human respiratory system causing difficulty in breathing. It is a contagious disease...
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What is type metal?
In printing, type metal (sometimes called hot metal) refers to the metal alloys used in traditional type founding and hot metal typesetting. Lead is the main constituent of these alloys....
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Write the balanced chemical equation for the following and identify the type of reaction in each case.
Answer (a) 2KBr (aq) + BaI2 (aq) → 2KI (aq) + BaBr2 (s): Double displacement reaction (b) ZnCO3 (s) → ZnO (s) + CO2 (g): Decomposition reaction (c) H2 (g) + Cl2 (g) → 2HCl (g): Combination reaction (d) Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g)...
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Write the balanced chemical equations for the following reactions and identify the type of reaction in each case.
(a) N2(g) + 3H2(g) + Catalyst(773 K) → 2NH3(g) Combination reaction (b) NaOH(aq) + CH3COOH(aq) → CH3COONa(aq) + H2O(l) Double displacement reaction/Neutralisation reaction (c) C2H5OH(l) + CH3COOH(l) + H+ → CH3COOC2H5(l) + H2O(l) Double displacement...
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Which of the following can be made into crystal? (a) A Bacterium (b) An Amoeba (c) A Virus (d) A Sperm
(c) A Virus.......
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Classify the following into osmosis/diffusion (a) Swelling up of a raisin on keeping in water. (b) Spreading of virus on sneezing.
(a) Osmosis (b) Diffusion (c) Osmosis (d) Osmosis (e) Osmosis (f) Diffusion (g) Diffusion
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Classify each of the following as either a p-type or n-type semi-conductor
Hint : (a) Ge is group 14 element and In is group 13 element. Therefore, an electron deficit hole is created. Thus semiconductor is p-type. (b) Since B is group 13 element...
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Classify each of the following as being either a p-type or an n-type semiconductor: (i) Ge doped with In
(i) Ge (a group 14 element) is doped with In (a group 13 element). Therefore, a hole will be created and the semiconductor generated will be a p-type semiconductor. (ii) B (a...
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How can the two emulsions can be distinguished : (a) oil in water type (o/w) and (b) water in oil type (w/o)
[Hint : (a) By dilution test (b) By dye test]
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Differentiate between box-type solar cooker and spherical reflector type solar cooker.
Box-type solar cooker Spherical reflector type solar cooker 1. Plane mirror is used as a reflector. 2. It does not concentrate solar energy at a point. 3. Cornparativeiv low temperature is produced in it. 4. It is used to...
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