Chemistry-
General
Easy
Question
What is the simplest formula of a solid whose cubic unit cell has the atom A ateach corner, the atom Bat each face centre and a Catom at the body centre-
- AB2C
- A2BC
- AB3C
- ABC3
The correct answer is: AB3C
Related Questions to study
physics-
An equiconvex lens is cut into two halves along (i) XOX¢ and (ii) YOY¢ as shown in the figure. Let f, f ¢, f ¢¢ be the focal lengths of the complete lens, of each half in case (i), and of each half in case (ii), respectively
Choose the correct statement from the following
An equiconvex lens is cut into two halves along (i) XOX¢ and (ii) YOY¢ as shown in the figure. Let f, f ¢, f ¢¢ be the focal lengths of the complete lens, of each half in case (i), and of each half in case (ii), respectively
Choose the correct statement from the following
physics-General
physics-
A point object O is placed in front of a glass rod having spherical end of radius of curvature 30 cm. The image would be formed at
A point object O is placed in front of a glass rod having spherical end of radius of curvature 30 cm. The image would be formed at
physics-General
physics-
A convex lens is made up of three different materials as shown in the figure. For a point object placed on its axis, the number of images formed are
A convex lens is made up of three different materials as shown in the figure. For a point object placed on its axis, the number of images formed are
physics-General
chemistry-
In FCC crystal, which of the following shaded planes contains the following type of arrangement of atoms
In FCC crystal, which of the following shaded planes contains the following type of arrangement of atoms
chemistry-General
chemistry-
Assertion: The value of Vander Waal constant a is higher for NH3 than for N2.
Reason: Hydrogen bonding is present in ammonia.
Assertion: The value of Vander Waal constant a is higher for NH3 than for N2.
Reason: Hydrogen bonding is present in ammonia.
chemistry-General
chemistry-
If 10-4 dm-3 of water is introduced into a1.0 dm-3 flask at 300K,how many moles of water are in the vapour phase when equilibrium is established? (Given : Vapour pressure of H2O at300 is3170pa;R=8.314JK 1mol)
If 10-4 dm-3 of water is introduced into a1.0 dm-3 flask at 300K,how many moles of water are in the vapour phase when equilibrium is established? (Given : Vapour pressure of H2O at300 is3170pa;R=8.314JK 1mol)
chemistry-General
chemistry-
Under identical conditions of temperature and pressure the ratio of the rates of effision of O2 and CO2 gases is given by–
Under identical conditions of temperature and pressure the ratio of the rates of effision of O2 and CO2 gases is given by–
chemistry-General
chemistry-
Which of the following has maximum root mean square velocity at the same temperature?
Which of the following has maximum root mean square velocity at the same temperature?
chemistry-General
maths-
The polar equation of the circle with centre at 
and passing through pole is
The polar equation of the circle with centre at and passing through pole is
maths-General
physics-
Figure given below shows a beam of light converging at point P. When a convex lens of focal length 16 cm is introduced in the path of the beam at a place O shown by dotted line such that OP becomes the axis of the lens, the beam converges at a distance x from the lens. The value x will be equal to
Figure given below shows a beam of light converging at point P. When a convex lens of focal length 16 cm is introduced in the path of the beam at a place O shown by dotted line such that OP becomes the axis of the lens, the beam converges at a distance x from the lens. The value x will be equal to
physics-General
physics-
The combination of a convex lens (
= 18 cm) and a thin concave lens ( = 9 cm) is
The combination of a convex lens ( = 18 cm) and a thin concave lens ( = 9 cm) is
physics-General
physics-
A convex lens has a focal length f. It is cut into two parts along the dotted line as shown in the figure. The focal length of each part will be
A convex lens has a focal length f. It is cut into two parts along the dotted line as shown in the figure. The focal length of each part will be
physics-General
chemistry-
A compound MpXq has cubic close packing (ccp) arrangement of X, its unit cell structure is shown below. The empericial formula of the compound is
A compound MpXq has cubic close packing (ccp) arrangement of X, its unit cell structure is shown below. The empericial formula of the compound is
chemistry-General
chemistry-
If the average velocity of N2 molecules is 0.3 m./sec.at 27°C,then the velocity of 0.6m/sec will take place at-
If the average velocity of N2 molecules is 0.3 m./sec.at 27°C,then the velocity of 0.6m/sec will take place at-
chemistry-General
chemistry-
If the four tubes of a car are filled to the same pressure with N2,O2,H2 and we separately then which one will be filled first -
If the four tubes of a car are filled to the same pressure with N2,O2,H2 and we separately then which one will be filled first -
chemistry-General
