Substances which break just after their elastic limit is reached are ___.
(A) ductile
(B) brittle
(C) malleable
(D) plastic
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Fill in the blanks : (ii)Many enzymes contain cetain ___ substances associated with them. There substances are called ____
Correct Answer - non-protein , cofactors
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Fill in the blanks : (iii)The fastest known enzyme is ____ found in red blood cells. It hydrates 36 millions molecules of `CO_2` to ___ and ___ in jus
Correct Answer - Carbonic anhydrase, bicarbonate ions `(HCO_(3)^(-)), H^(+)`
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A/an is a simple combination of two or more substances in which the constituent substances retain their separate identities.
(B) mixture The mixture show, the properties of its constituent substance while the compounds show different properties to its constituent (substance).
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A/an is a simple combination of two or more substances in which the constituent substances retain their separate identities.
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Define elastic limit.
The maximum value of stress upto which stress is directly proportional to strain is called the elastic limit.
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Within the elastic limit, the slope of graph between stress against strain gives ____ .
Correct option is: (C) modulus of elasticity
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Solids which break or rupture before the elastic limits are called
Correct option is: (A) brittle
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Waste substances that can be degraded by microbes into harmless and non-toxic substances are
C) biodegradable waste
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These substances are required to prove that the speed of diffusion is different for different substances.
C) Long glass tube, cotton, HCl, NH3
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The average lower limit of one class and the upper limit of one preceding class is called as ……………… boundary.
Correct option is A) Lower
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