Recent questions tagged neet

Lenticels are involved in

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In china rose the flowers are :

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Interfascicular cambium develops from the cells of :

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Among bitter gourd, mustard, brinjal, pumpkin, china rose, lupin, cucumber, sunnhemp, gram, guava, bean, chilli, plum, petunia, tomato, rose, withania, potato, onion, aloe and tulip how many plants have hypogynous flower ?

asked Aug 20, 2018 by pady_1

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Read the following statements (A– E) and answer the question which follows them : (A) In liverworts, mosses and ferns gametophytes are free-living (B) Gymnosperms and some ferns are heterosporous (C) Sexual reproduction in Fucus, Volvox and Albugo is oogameous (D) The sporophytes in liverworts is more elaborate than that in mosses (E) Both, Pinus and Marchentia are dioecious How many of the above statements are correct ?

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Megasporangium is equivalent to :

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Besides paddy fields, cyanobacteria are also found inside vegetative part of :

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Isogamous condition with non-flagellated gametes is found in:

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Which one of the following is not a correct statement ?

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Select the wrong statement :

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Which of the following compounds will not undergo Friedel-Craft reaction easily-

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The order of stability of the following tautomeric compounds is

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Which is the monomer of Neoprene in the following ?

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Which of the following is a polar molecule ?

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$6.02 \times 10^{20}$ molecules of urea are present in $100\; mL$ of its solution. The concentration of solution is-

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Some meta - directing substitution in aromatic substitution are given. Which one is most deactivating ?

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Nitrobenzene on reaction with $conc. HNO_3/H_2SO_4$ at $80 – 100^ºC$ forms which one of the following products?

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The structure of isobutyl group in an organic compound is-

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Nylon is an example of-

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Among the following ethers, which one will produce methyl alcohol on treatment with hot concentrated HI ?

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Antiseptics and disinfectants either kill or prevent growth of microrganisms. Identify which of the following statements is not true-

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Which one of the following molecules contains no $\pi$ bond ?

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Which of the following statements about the interstitial compounds is incorrect ?

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Which of these is not a monomer for a high molecular mass silicone polymer ?

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Structure of the compound whose IUPAC name is 3-Ethyl-2-hydroxy-4-methylhex-3-en-5-ynoic acid is :

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Which of the following is electron-deficient ?

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$KMnO_4$ can be prepared from $K_2MnO_4$ as per the reaction : $ 3MnO_4^{2-} + 2H_2O \rightleftharpoons 2MnO_4^- + MnO_2 + 4 OH^-$. The reaction can go to completion by removing $OH^-$ ions by adding -

asked Aug 20, 2018 by pady_1

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Which of these is least likely to act as a Lewis base ?

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In excess of $AgNO_3$ is added to 100 mL of a 0.01 M solution of dichlorotetraaquachrominum (III) chloride. The number of moles of AgCl precipitated would be-

asked Aug 20, 2018 by pady_1

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$XeF_2$ is isostructural with-

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Identify the correct order of solubility in aqueous medium-

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Which of the following lanthanoid ions is diamagnetic ? (At. No. Ce = 58, Sm = 62, Eu = 63, Yb = 70)

asked Aug 20, 2018 by pady_1

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Which of the following does not give oxygen on heating ?

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Reaction by which Benzaldehyde cannot be prepared-

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The basic structural unit of silicates is -

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Which of the following structure is similar to graphite ?

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Which of the following is paramagnetic ?

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Which is the strongest acid in the following ?

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Roasting of sulphides gives the gas X as a byproduct. This is colorless gas with choking smell of burnt sulphur and causes great damage to respiratory organs as a result of acid rain. Its aqueous solution is acidic, acts as a reducing agent and its acid has never been isolated. The gas X is -

asked Aug 20, 2018 by pady_1

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A magnetic moment of 1.73 BM will be shown by one among the following -

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Dipole - induced dipole interactions are present in which of the following pairs :

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A metal has a fcc lattice. The edge length of the unit cell is 404 pm. The density of the metal is $ 2.72 \; g \;cm^{–3}$. The molar mass of the metal is : [NA Avogadro's constant = $6.02 \times 10^{23} mol^{–1}$]

asked Aug 20, 2018 by pady_1

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Maximum deviation from ideal gas is expected from :

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The number of carbon atoms per unit cell of diamond unit cell is -

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How many grams of concentrated nitric acid solution should be used to prepare 250 mL of 2.0 M $HNO_3$ ? The concentrated acid is 70 % $HNO_3$.

asked Aug 20, 2018 by pady_1

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A button cell used in watches functions as following $Zn(s) + Ag_2O(s) + H_2O (l) \rightleftharpoons 2Ag(s) + Zn^{2+} (aq) + 2OH^- (aq)$ If half cell potentials are $Zn^{2+} (aq) + 2e^- \to Zn (s) ; \; \; \; E^o = -0.76V $ $ Ag_2O(s) + H_2O (l) + 2e^- \to 2Ag(s) + 2OH^- (aq),\; \; \; E^o = 0.34 V $ The cell potential will be -

asked Aug 20, 2018 by pady_1

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Based on equation $E = -2.178 \times 10^{-18} J (\frac{Z^2}{n^2})$, certain conclucsions are written. Which of them is not correct ?

asked Aug 20, 2018 by pady_1

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At $25^oC$ molar conductance of 0.1 molar aqueous solution of ammonium hydroxide is $9.54 \; ohm^{-1} cm^2 mol^{-1}$ and at infinite dilution its molar conductance is $238 \; ohm^{-1} cm^2 mol^{-1}$. The degree of ionisation of ammonium hydroxide at the same concentration and temperature is -

asked Aug 20, 2018 by pady_1

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