The number of radial node/s for 3p orbital is:
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The number of radial node/s for 3p orbital is:
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Given below are two statements:
Statement (I): Both metal and non-metal exist in p and d-block elements.
Statement (II): Non-metals have higher ionisation enthalpy and higher electronegativity than the metals.
In the light of the above statements, choose the most appropriate answer from the options given below:
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Given below are two statements:
Statement (I): A $$\pi$$ bonding MO has lower electron density above and below the inter-nuclear axis.
Statement (II): The $$\pi^*$$ antibonding MO has a node between the nuclei.
In light of the above statements, choose the most appropriate answer from the options given below:
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Select the compound from the following that will show intramolecular hydrogen bonding.
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Solubility of calcium phosphate (molecular mass, M) in water is W g per 100 mL at 25°C. Its solubility product at 25°C will be approximately.
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Match List - I with List - II.
Choose the correct answer from the options given below:
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Given below are two statements:
Statement (I): $$SiO_2$$ and $$GeO_2$$ are acidic while SnO and PbO are amphoteric in nature.
Statement (II): Allotropic forms of carbon are due to property of catenation and $$p\pi - d\pi$$ bond formation.
In the light of the above statements, choose the most appropriate answer from the options given below:
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Which among the following has highest boiling point?
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The set of meta directing functional groups from the following sets is:
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The functional group that shows negative resonance effect is:
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Lassaigne's test is used for detection of:
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In the given reactions identify A and B.
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The strongest reducing agent among the following is:
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The transition metal having highest 3rd ionisation enthalpy is:
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Which of the following compounds show colour due to d-d transition?
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Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: In aqueous solutions $$Cr^{2+}$$ is reducing while $$Mn^{3+}$$ is oxidising in nature.
Reason R: Extra stability to half filled electronic configuration is observed than incompletely filled electronic configuration.
In the light of the above statement, choose the most appropriate answer from the options given below:
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Given below are two statements:
Statement (I): Dimethyl glyoxime forms a six membered covalent chelate when treated with $$NiCl_2$$ solution in presence of $$NH_4OH$$.
Statement (II): Prussian blue precipitate contains iron both in +2 and +3 oxidation states.
In the light of the above statements, choose the most appropriate answer from the options given below:
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$$[Co(NH_3)_6]^{3+}$$ and $$[CoF_6]^{3-}$$ are respectively known as:
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Acid D formed in above reaction is:
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Match List - I with List - II.
Choose the correct answer from the options given below:
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10 mL of gaseous hydrocarbon on combustion gives 40 mL of $$CO_2(g)$$ and 50 mL of water vapour. Total number of carbon and hydrogen atoms in the hydrocarbon is ______.
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For a certain reaction at 300 K, K = 10, then $$\Delta G°$$ for the same reaction is - ______ $$\times$$ $$10^{-1}$$ $$kJ mol^{-1}$$. (Given $$R = 8.314 \text{ J K}^{-1} \text{mol}^{-1}$$)
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Following Kjeldahl's method, 1 g of organic compound released ammonia, that neutralised 10 mL of $$2M$$ $$H_2SO_4$$. The percentage of nitrogen in the compound is ______ %.
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Total number of isomeric compounds (including stereoisomers) formed by monochlorination of 2-methylbutane is ______.
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Mass of ethylene glycol (antifreeze) to be added to 18.6 kg of water to protect the freezing point at $$-24°C$$ is ______ kg (Molar mass in g mol$$^{-1}$$ for ethylene glycol 62, $$K_f$$ of water = $$1.86 \text{ K kg mol}^{-1}$$)
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The amount of electricity in Coulomb required for the oxidation of 1 mol of $$H_2O$$ to $$O_2$$ is ______ $$\times 10^5$$ C.
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Consider the following redox reaction: $$MnO_4^- + H^+ + H_2C_2O_4 \rightleftharpoons Mn^{2+} + H_2O + CO_2$$
The standard reduction potentials are given as below:
$$E^0_{MnO_4^-/Mn^{2+}} = +1.51$$ V; $$E^0_{CO_2/H_2C_2O_4} = -0.49$$ V
If the equilibrium constant of the above reaction is given as $$K_{eq} = 10^x$$, then the value of $$x$$ = ______ (nearest integer)
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The following data were obtained during the first order thermal decomposition of a gas A at constant volume:
The rate constant of the reaction is ______ $$\times 10^{-2} \text{ s}^{-1}$$ (nearest integer)
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Number of compounds which give reaction with Hinsberg's reagent is ______.
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The number of tripeptides formed by three different amino acids using each amino acid once is ______.
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