Lithium has a $bcc$ structure. Its density is $530 \, kg \, m^{-3}$ and its atomic mass is $6.94 \, g \, mol^{-1}$. Calculate the edge length of a unit cell of Lithium metal. ($NA = 6.02 \times 10^{23} \, mol^{-1}$)
- 352 pm
- 527 pm
- 264 pm
- 154 pm
The Correct Option is A
Solution and Explanation
Top Questions on The solid state
The transition metal with the highest melting point is:
- AP EAMCET - 2024
- Chemistry
- The solid state
Match List I with List II and select the correct answer.
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- A mixture of substances A, B, C, D is subjected to column chromatography. The degree of adsorption is in the order of \(D>B>C>A\). The column is eluted with a suitable solvent. Identify the correct statement with respect to the separation of the mixture.
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The molar heats of fusion and vaporization of benzene are 10.9 and 31.0 kJ mol\(^{-1}\) respectively. The changes in entropy for the solid \(\rightarrow\) liquid and liquid \(\rightarrow\) vapor transitions for benzene are \(x\) and \(y\) J K\(^{-1}\) mol\(^{-1}\) respectively. The value of \(y(x)\) in J\(^2\) K\(^{-2}\) mol\(^{-2}\) is:
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- Inner shell electrons in atoms moving from one energy level to another lower energy level produce:
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Questions Asked in NEET exam
- A metallic bar of Young’s modulus, 0.5 × 1011 N m–2 and coefficient of linear thermal expansion 10–5 °C–1, length 1 m and area of cross-section 10–3 m2 is heated from 0°C to 100°C without expansion or bending. The compressive force developed in it is :
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- In a uniform magnetic field of \(0.049 T\), a magnetic needle performs \(20\) complete oscillations in \(5\) seconds as shown. The moment of inertia of the needle is \(9.8 \times 10 kg m^2\). If the magnitude of magnetic moment of the needle is \(x \times 10^{-5} Am^2\); then the value of '\(x\)' is
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- A particle moving with uniform speed in a circular path maintains :
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- Uniform Circular Motion
- Match List I with List II.Choose the correct answer from the options given below:
List I
(Molecule)List II
(Number and types of bond/s between two carbon atoms)A. ethane I. one σ-bond and two π-bonds B. ethene II. two π-bonds C. carbon molecule, C2 III. one σ-bonds D. ethyne IV. one σ-bond and one π-bond - NEET (UG) - 2024
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- If the plates of a parallel plate capacitor connected to a battery are moved close to each other, then
A. the charge stored in it, increases.
B. the energy stored in it, decreases.
C. its capacitance increases.
D. the ratio of charge to its potential remains the same.
E. the product of charge and voltage increases.
Choose the most appropriate answer from the options given below :- NEET (UG) - 2024
- Capacitors in Parallel and in Series
Concepts Used:
Solid State
Solids are substances that are featured by a definite shape, volume, and high density. In the solid-state, the composed particles are arranged in several manners. Solid-state, in simple terms, means "no moving parts." Thus solid-state electronic devices are the ones inclusive of solid components that don’t change their position. Solid is a state of matter where the composed particles are arranged close to each other. The composed particles can be either atoms, molecules, or ions.
Types of Solids:
Based on the nature of the order that is present in the arrangement of their constituent particles solids can be divided into two types;
- Amorphous solids behave the same as super cool liquids due to the arrangement of constituent particles in short-range order. They are isotropic and have a broad melting point (range is about greater than 5°C).
- Crystalline solids have a fixed shape and the constituent particles are arranged in a long-range order.