Level : Hard

In the transformation of ^{_{92}^{238}\textrm{U}} to ^{_{92}^{234}\textrm{U}} , if one emission is an \alpha-particle, what should be the other emission( s )?

A. one \beta- and one \gamma

B. one \beta+  and one \beta-

C. two \beta-

D. two \beta-  and one \beta+

Options

The strongest acid amongst the following compounds is:

A. CH3COOH

B. HCOOH

C. CH3CH2CH(Cl)CO2H

D. ClCH2CH2CH2COOH

A. CH3COOH

B. HCOOH

C. CH3CH2CH(Cl)CO2H

D. ClCH2CH2CH2COOH

A. CH3COOH

B. HCOOH

C. CH3CH2CH(Cl)CO2H

D. ClCH2CH2CH2COOH

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