Among the elements Ca, Mg, P and Cl, the order of increasing atomic radii is :
Among the elements Ca, Mg, P and Cl, the order of increasing atomic radii is :
Options
(a) Ca < Mg < P< Cl (b) Mg < Ca < Cl < P (c) […]
AIPMT2010
Which one of the following species does not exist under normal conditions?
Which one of the following species does not exist under normal conditions?
Options
(a) Be₂⁺ (b) Be₂ (c) B₂ (d) Li₂
Correct Answer:
Be₂
Explanation:
Bond order of Be₂ is zero hence it […]
The number of atoms in 0.1 mol of a triatomic gas is (Na = 6.02 x 10²³ mol⁻¹)
The number of atoms in 0.1 mol of a triatomic gas is (Na = 6.02 x 10²³ mol⁻¹)
Options
(a) 6.026 x 10²² (b) 1.806 x 10²³ (c) 3.6 x 10²³ (d) 1.8 […]
A 0.66 kg ball is moving with a speed of 100 m/s. The associated wavelength
A 0.66 kg ball is moving with a speed of 100 m/s. The associated wavelength will be(h=6.6 x 10⁻³⁴ Js)
Options
(a) 1.0 x 10⁻³² m (b) 6.6 x 10⁻³² m (c) 6.6 […]
A particle has initial velocity(3i⃗ +4j⃗)and has acceleration (0.4i⃗ +0.3j⃗)
A particle has initial velocity(3i⃗ +4j⃗)and has acceleration (0.4i⃗ +0.3j⃗). It’s speed after 10s is:
Options
(a) 7 units (b) 7√2 units (c) 8.5 units (d) 10 units
Correct Answer:
7√2 units
Explanation:
No […]
The dimension of 1/2ε₀E², where ε₀ is permittivity of free space and E is electric field
The dimension of 1/2ε₀E², where ε₀ is permittivity of free space and E is electric field, is:
Options
(a) ML²T⁻² (b) ML⁻¹T⁻² (c) ML²T⁻¹ (d) MLT⁻¹
Correct Answer:
ML⁻¹T⁻²
Explanation:
1/2 ?￢ﾂﾀE² represents […]
Satellite DNA is useful tool in:
Satellite DNA is useful tool in:
Options
(a) organ transplanation (b) sex determination (c) forensic science (d) genetic engineering
Correct Answer:
forensic science
Explanation:
Satellite DNA is useful in forensic science. The polymorphism […]
Infectious proteins are present in:
Infectious proteins are present in:
Options
(a) Gemini viruses (b) Prions (c) Viroids (d) Satellite viruses
Correct Answer:
Prions
Explanation:
Infections proteins are rich in prions. Prions are made of proteins without nucleic […]
Darwin’s finches are a good example of:
Darwin’s finches are a good example of:
Options
(a) Industrial melanism (b) Connecting link (c) Adaptive radiation (d) Convergent evolution
Correct Answer:
Adaptive radiation
Explanation:
No explanation available. Be the first to write […]
Apomictic embryos in citrus arise from
Apomictic embryos in citrus arise from
Options
(a) Synergids (b) Maternal sporophytic tissue in ovule (c) Antipodal cells (d) Diploid egg
Correct Answer:
Maternal sporophytic tissue in ovule
Explanation:
Apomixis is an asexual […]