List of practice Questions

With increase in temperature the viscosity of

With propagation of longitudinal waves through a medium, the quantity transmitted is

With respect to the fungal sexual cycle, choose the correct sequence of events.

With rise in temperature, the Young?? modulus of elasticity

Within each transition series, the oxidation states

Within elastic limit, which of the following graphs correctly represents the variation of extension in the length of a wire with the external load?

Wolframite is separated from cassiterite by

World's most problematic aquatic weed is

Write the converse of the following statement. If you do all the exercises in the book, you get an $A$-grade in the class.

Wurtz reaction is used to unite

$ (x^2 + xy) dy = (x^2 + y^2) dx$ is

$??? Identify correct statements about $X$, $A$, $B$, $C\, \&\, D$, which cause global warming. i. $??? ii. ????ombines with oxygen to produce $??? iii. ??? iv. ????auses acid rain

$X$ mL of $H_2$ effuse through a hole in a container in 5 seconds. The time taken for the effusion of the same volume of the gas specified below under identical conditions is

X reacts with NaOH (aqueous solution) to form Y and $H_2$. Aqueous solution of Y is heated to 323- 333 K and on passing $ {CO_2}$ into it, $ {Na_2CO_3}$ and Z were formed. When Z is heated to $1200^{\circ}C , { Al_2O_3}$ is formed. X, Y and Z respectively are

??X??s a part of respiratory system that contains C-shaped rings of hyaline cartilage.??X??s lined with ciliated, pseudostratified columnar epithelium.Identify??X?

Xenon best reacts with

$XO$ type of sex determination and $XY$ type of sex determination are the examples of

Yeast cell divides once in approximately every

Yellow light of wavelength $6000 ?$ produces fringes of width $0.8\, mm$ in Youngs double slit experiment. If the source is replaced by another monochromatic source of wavelength $7500 ?$ and the separation between the slits is doubled then the fringe width becomes

Yogurt and buttermilk are produced with the use of

Yolk sac develops in humans from

You are given four sources of light each one providing a light of a single colour - red, blue, green and yellow. Suppose the angle of refraction for a beam of yellow light corresponding to a particular angle of incidence at the interface of two media is $90^{\circ}$. Which of the following statements is correct, if the source of yellow light is replaced with that of other lights without changing the angle of incidence?

You are given two spheres of same material and radii $10\,cm$ and $20\, cm$. They are heated to the same temperature. They are placed in the same environment. The ratio of their rates of cooling will be

Young?? modulus of the wire depends on

Young's modulus of steel is $1.9 \times 10^{11}\, N \,m^{-2}$. When expressed in $CGS$ units of dynes $cm^{-2}$, it will be equal to ($1 \,N = 10^5$ dyne, $1\, m^2 = 10^4\, cm^2$)