List of practice Questions

In the reaction between $ {SO_2}$ and $ {O_3}$, the equivalent weight of ozone is

In the reaction : $Cl_2 + OH^- \to Cl^- + ClO_4 + H_2O$

In the reaction $ {2 Na_2S_2O_3 + I_2 -> Na_2 S_4 O_6 + NaI}$ the oxidation number of sulphur is

In the pressure cooker the cooking is faster because the increase of vapour pressure

In the process of insertional inactivation

In the propagation of electromagnetic waves, the angle between the direction of propagation and plane of polarisation is

In the periodic table, the maximum chemical reactivity is at the extreme left (alkali metals) and extreme right (halogens). Which properties of these two groups are responsible for this?

In the preparation of compounds of $Xe$, Bartlett had taken $O^+_2\, PtF_6^-$ as a base compound. This is because

In the preparation of ethyl chloride by Grooves?>[Anhyd.ZnCl_2] CH_2CH_2Cl + H_2O}$ the main reason for using anhydrous $ {ZnCl_2}$ as catalyst is that

In the presence of oxygen, removal of sulphur from the ore is done in

In the metallic crystal

In the monocot root, we obseve

In the nuclear reactors the moderators are used to :

In the hydroponic technique, to obtain the optimum growth, nutrient solutions must be

In the manufacture of safety matches we use

In the given reaction : $ {CH3CH2OH ->[KMnO_4][H^+] A }$$ { ->[B][H_2SO_4 /heat] CH3COOCH2CH3}$ A and B are

In the given representation of Calvin cycle, Identify $A, B$ and $C$ and select the correct option.

In the given $T.S.$ of human ovary identify $A$ to $F$ and select the correct option.

In the given transverse section of stem showing periderm, identify the parts labelled $P$, $Q$, $R$, $S$ and select the correct option.

In the Frasch process, molten sulphur rises up from the

In the given figure of the heart which of the labelled part $(1, 2, 3,4, 5)$ carries oxygenated blood?

In the given flow chart, the flow of water is shown from soil to xylem of the root. Identify the tissues involved in steps $A$ and $B$.

In the given graph, a periodic property $(R)$ is plotted against atomic numbers $(Z)$ of the elements. Which property is shown in the graph and how it is correlated with reactivity of the elements?

In the following reaction, the energy released is $4 ^{1}_{1}H \to ^{4}_{2}He + 2e^{+} +$ Energy Given : Mass of $^{1}_{1}H = 1.007825 \,u$ Mass of $^{4}_{2}He = 4.002603\, u$ Mass of $e^{+} = 0.000548\, u$

In the following sets of reactants which two sets best exhibit the amphoteric characters of $ {Al_2O_3. xH_2O}$ ? Set 1: $ {Al2O3.xH2O (s)}$ and $ {OH- (aq)}$ Set 2: $ {Al2O3.xH2O (s)}$ and $ {H2O (l)}$ Set 3: $ {Al2O3.xH2O (s)}$ and $ {H+ (aq)}$ Set 4: $ {Al2O3.xH2O (s)}$ and $ {NH3 (aq)}$