When initial concentration of the reactant is doubled, the half-life period of a zero order reaction
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The bond dissociation energies of $X_2 , Y_ 2$ and XY are in the ratio of 1 : 0.5 : 1. ΔH for the formation of XY is –200 kJ $mol^{–1}$. The bond dissociation energy of $X_2$ will be |
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The correction factor ‘a’ to the ideal gas equation corresponds to |
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Consider the following species : |
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Magnesium reacts with an element (X) to form an ionic compound. If the ground state electronic configuration of (X) is $1s^2 2s^2 2p^3$, the simplest formula for this compound is |
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Iron exhibits bcc structure at room temperature. Above 900°C, it transforms to fcc structure. The ratio of density of iron at room temperature to that at 900°C (assuming molar mass and atomic radii of iron remains constant with temperature) is |
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Which one is a wrong statement? |
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Double fertilization is |
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What is the role of $NAD^{+}$ in cellular respiration? |
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In which of the following forms is iron absorbed by plants? |
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Which one of the following plants shows a very close relationship with a species of moth, where none of the two can complete its life cycle without the other? |
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