MCQ
Dry ice is
- AIce cube
- BSodium chloride
- CLiquid nitrogen
- ✓Solid carbon dioxide
✓
Answer
Correct option: D.
Solid carbon dioxide
d
(d) We know that when solid carbondioxide is heated, it becomes vapour directly without passing through its liquid phase.
(d) We know that when solid carbondioxide is heated, it becomes vapour directly without passing through its liquid phase.
Therefore it is called dry ice.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
A force $\overrightarrow{ F }=4 \hat{ i }+3 \hat{ j }+4 \hat{ k }$ is applied on an intersection point of $x =2$ plane and $x$ -axis. The magnitude of torque of this force about a point $(2,3,4)$ is.......... . (Round off to the Nearest Integer)
→A $100\, g$ iron ball having velocity $10 \,m/s$ collides with a wall at an angle $30^°$ and rebounds with the same angle. If the period of contact between the ball and wall is $0.1\, second$, then the force experienced by the wall is ........... $N$
→One mole of a monoatomic gas and one mole of a diatomic gas are initially in the same state. Both gases are expanded isothermally and then adiabatically, such that they acquire the same final state. Choose the correct statement.
This question has Statement $1$ and Statement $2$. Of the four choices given after the Statements, choose the one that best describes the two Statements.
→Statement $1$: If you push on a cart being pulled by a horse so that it does not move, the cart pushes you back with an equal and opposite force.
Statemf'nt $2$: The cart does not move because the force described in statement $1$ cancel each other
Figure shows a cylindrical adiabatic container of total volume $2V_0$ divided into two equal parts by a conducting piston (which is free to move). Each part containing identical gas at pressure $P_0$ . Initially temperature of left and right part is $4T_0$ and $T_0$ respectively. An external force is applied on the piston to keep the piston at rest. Find the value of external force required when thermal equilibrium is reached. ( $A =$ Area of piston)
→The anode of a thermionic diode is connected to the negative terminal of a battery and the cathode to its positive terminal:
The escape velocity of a body on an imaginary planet which is thrice the radius of the earth and double the mass of the earth is $({v_e}$ is the escape velocity of earth)
→In Melde’s experiment in the transverse mode, the frequency of the tuning fork and the frequency of the waves in the strings are in the ratio
The angles which a vector $\hat i + \hat j + \sqrt 2 \,\hat k$ makes with $X, Y$ and $Z$ axes respectively are
→Time period of a simple pendulum is $T$. The angular displacement for amplitude is $\beta$. How much time the bob of pendulum will take to move from equilibrium position $O$ to $A$, making an angle $\alpha$ at the support
→