Which country is the largest producer of bauxite in the world
Australia is the largest producer of bauxite in the world.
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Which of the following is a displacement reaction a) 2Hg+O2→2HgO b) FeCl3+3NaOH→3NaCl+Fe(OH)3 c) NaOH+HNO3→NaNO3+H2O d) Cu+2AgNO3→Cu(NO3)2+2Ag
d) Cu+2AgNO3→Cu(NO3)2+2Ag. In this reaction active metal like Cu displaces less active metal such as Ag.
State true or false: the unit of rate constant for a given reaction is [latex]M^{1-n}L^{n-1}t^{-1}[/latex], where n is order
True. The unit of rate constant for a given reaction is \(\begin{array}{l}M^{1-n}L^{n-1}t^{-1}\end{array} \), where n is order.
Explain bank of issue function of central bank
The central bank alone holds sole authority for the issue of currency in the country. All the currency notes are... View Article
Flame cellssolenocytes are main excretory structures of (a) Annelids (b) Molluscs (c) Platyhelminthes (d) Echinodermates
Option (c) Platyhelminthes
True or false: The amoeba is a multicellular animal
The given statement is false. The amoeba is a unicellular organism.
The conversion of nitrates to nitrogen gas by bacteria is called
Denitrification is the process that converts nitrate to nitrogen gas by bacteria.
The distance once around the circle is called (a) Radius (b) Chord (c) Diameter (d) circumference
Option (d) circumference
Ovary is said to be half inferior in which of the following condition (a) Perigynous (b) Hypogynous (c) Epigynous (d) None of the option
Option (a) Perigynous
Which of the following are the correct differences between pteridophytes and phanerogams (a) Pteridophytes can reproduce by formation of spores whereas, phanerogams cannot reproduce by formation of spores. (b) Pteridophytes have vascular tissue and phanerogams do not have vascular tissue (c) Pteridophytes are seedless plants whereas, phanerogams are seed-bearing plants. (d) Pteridophytes are non-flowering plants whereas, phanerogams are flowering plants.
The difference between pteridophytes and phanerogams is mentioned in these points. Pteridophytes are non-flowering plants whereas, phanerogams are flowering plants.... View Article
Name the part of the flower which the tassels of the corn-cob represent
Style and stigma are the part of the flower which the tassels of the corn-cob represent.
At what speed, the velocity head of water is equal to pressure head of 40 cm of mercury?
\(\begin{array}{l}Velocity head = frac{1}{2}rho v^{2}\end{array} \) \(\begin{array}{l}p = rho gh\end{array} \) from the problem we know that, h =40 cm... View Article
Rugby football is a national game of which of the following countries a) France and Iceland b) Ireland and Norway c) England and Scotland d) Romania and Ireland
Option c) England and Scotland
Give reasons for the following: leukocytes are called soldiers of our body
Leukocytes are known as white blood cells. They are the source of immunity. They are known as soldiers because they... View Article
The first three members of a homologous series are ch4 c2h6 c3h8 the fifth member a) C5H12 b) C5H8 c) C5H10 d) C5H14
Option a) C5H12 The General formula of this homologous series is \(\begin{array}{l}C_{n}H_{2n}+2\end{array} \) The first member is CH4 (methane) The... View Article
What is the difference between efferent nerves and afferent nerves
Afferent nerves <ul><li>These are the sensory neurons.</li><li>Afferent nerves conduct sensory impulses from the receptors to the central nervous system.</li><li>They are... View Article
Oxidation number of oxygen atom in O3 molecules is a) 0 b) +1 c) +2 d) -1
Option a) 0. Average Oxidation State=−1+1+0/3=0
Who is regarded as the father of indian phycology
Prof. M. O. P. Iyenger is regarded as the father of Indian Phycology.
GDP stands for
GDP stands for ‘Gross Domestic Product’ and represents the total monetary value of all final goods and services produced within... View Article
Bacterial flagella is made up of
The bacterial flagellum is made of a protein called flagellin.
